| Top UNL Expression Relations Attributes Universal Words UNLKB Knowledge Representation in UNL Logical Expression in UNL UNL System |
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UNL 2005 Specifications
7 June 2005
Copyright © UNL Center of UNDL Foundation
There are
many factors to be considered in choosing an inventory of relations between
concepts. Different factors taken into account in choosing the relations lead to
different sets of the relations. The UNL relations are selected according to the
following principles.
Principles
of Relation
PRINCIPLE
1 : NECESSARY CONDITION
When
an UW has relations between more than one other UWs, each relation label should
be set so as to be able to identify each relation on the premise that there is
enough knowledge about the concept of each UW expressed.
PRINCIPLE
2 : SUFFICIENT CONDITION
When
there are relations between UWs, each relation label should be set so as to be
able to understand the role of each UW only by referring to the relation label.
Definitions
of Relations
The
following are the relations defined according to the above principles. A
relation label is represented as strings of 3 characters or less.
| agt | and | aoj | bas | ben | cag | cao | cnt | cob | con | coo | dur | equ | fmt | frm |
| gol | icl | ins | int | iof | man | met | mod | nam | obj | opl | or | per | plc | plf |
| plt | pof | pos | ptn | pur | qua | rsn | scn | seq | shd | src | tim | tmf | tmt | to |
| via |
| agt | agent | ||
| indicates a thing in focus that initiates an action | |||
| agt ( do, thing ) agt ( action(icl>event), thing ) |
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| Detailed Definition | |||
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An
agent is defined as the relation between: |
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| Examples and
Readings |
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| Related Relations | |||
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·
An agent is different from cag
in that an agent initiates the action, whereas a co-agent initiates a
different, accompanied action. |
| and | conjunction | ||
| indicates a partner to have conjunctive relation to | |||
| and ( uw, uw ) | |||
| Detailed Definition | |||
|
A conjunction is defined as the relation between: UW1 – a concept, and UW2 – another concept, where: · The UWs are different, and · UW1 and UW2 are seen as grouped together, and · what is said of UW1 is also said of UW2. |
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| Examples and
Readings |
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| Related Relations | |||
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·
A conjunction is different from or
in that with and things are
grouped together to say the same thing about both of them, whereas with or we separate them to indicate that what is true about one is not
true about the other. · A conjunction is different from cag in that when the agents are conjoined, both initiate an explicit event, whereas with cag, the co-agent initiates an implicit event. · A conjunction is different from ptn in that when the agents and partners are conjoined, both are in focus, whereas with ptn, the partner is not in focus (as compared to the agent). · A conjunction is different from coo and seq in meaning, although in many cases the same expressions can be used for both. A conjunction only means that terms are grouped together; no information about time is implied. Coo, on the other hand, means that the terms are in the same time, whether they are considered to be grouped together or not. In turn, seq means that the terms are ordered in time, one after the other. · A conjunction is different from int and or in that as a logical operator or makes differences, int makes an intersection, whereas and makes a union . |
| aoj | thing with attribute | ||
| indicates a thing that is in s state or has an attribute | |||
| aoj ( be, thing ) aoj ( thing, thing ) aoj ( uw(aoj>thing), thing ) |
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| Detailed Definition | |||
|
A thing with an attribute or in a state is defined as
the relation between: UW1 – an attribute or a state or a thing which represents a state, and UW2 – a thing, where: · UW1 is an attribute or state of UW2, or · UW1 is a state associated with UW2. |
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| Examples and Readings |
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| Related Relations | |||
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·
A thing with an attribute is different from mod
in that mod gives some
restriction of the concept in focus, whereas aoj
indicates a thing of a state or characteristic. · A thing with an attribute is different from ben in that a beneficiary is quite independent from a focused event or state. This event or state can be considered as exerting a good or bad influence on the beneficiary, whereas aoj indicates a thing that has a direct relation with the event or state, the event or state can be considered as describing a state or characteristic about the thing. · A thing with an attribute is different from obj in that obj indicates a thing which is directly affected by an action or phenomenon, whereas, aoj indicates a thing in a state. |
| bas | basis | ||
| indicates a thing used as the basis (standard) of comparison | |||
| bas (
be(aoj>volitional thing,bas>thing,obj>thing), thing ) bas ( do(agt>thing,bas>thing,obj>thing), thing ) bas ( how(bas>thing), thing ) bas ( uw(aoj>thing,bas>thing), thing ) |
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| Detailed Definition | |||
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A basis is defined as the relation
between: UW1 – a concept expressing comparison, and UW2 – a thing, where: · UW1 is a concept expressing comparison, and · UW2 is something used as the basis for evaluating the characteristic or quantity of some other (focused) thing. |
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| Examples and
readings |
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| ben | beneficiary | ||
| indicates an indirectly related beneficiary or victim of an event or state | |||
| ben ( be, thing ) ben ( do, thing ) ben ( occur, thing ) ben ( uw(aoj>thing), thing ) |
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| Detailed Definition | |||
|
A beneficiary is defined as the
relation between: UW1 – an event or state, and UW2 – a thing, where: · UW2 is thought of as being indirectly affected by UW1, as the beneficiary or victim. |
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| Examples and Readings |
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| Related Relations | |||
| · A beneficiary is different from aoj in that aoj has a direct relation with the focused state or event and the focused state or event can be considered as describing the thing of aoj; Whereas a beneficiary is quite independent from a focused event or state, but this event or state can be considered as exerting a good or bad influence on the beneficiary. |
| cag | co-agent | ||
| indicates a thing not in focus that initiates an implicit event that is done in parallel | |||
| cag ( do, thing ) cag ( action(icl>event), thing ) |
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| Detailed Definition | |||
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A co-agent is defined as the
relation between: UW1 - an action, and UW2 - a thing where: · There is an implicit action that is independent of, but accompanies, UW1, and · UW2 is thought of as initiating the implicit action, and · UW2 and the implicit action are seen as not being in focus (as compared to the agentfs action. |
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| Examples and Readings |
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| Related Relations | |||
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·
A co-agent is different from agt
in that differing independent actions occur for an agent and a co-agent.
Moreover, an agent and its action are in focus, while a co-agent and its
action are not in focus. · A co-agent is different from the ptn in that the co-agent initiates an action that is independent of an agentfs action, whereas a partner initiates the same action together with an agent. |
| cao | co-thing with attribute | ||
| indicates a thing not in focus that is in a parallel state | |||
|
cao ( be, thing
) |
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| Detailed Definition | |||
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A co-thing with an attribute is
defined as the relation between: |
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| Examples and
readings |
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| Related Relations | |||
| · A co-thing with an attribute is different from aoj in that there is a different, independent state for the thing with an attribute and a co-thing with an attribute, respectively. |
| cnt | content | ||
| indicates the content of a concept | |||
|
cao ( uw, uw ) |
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| Detailed Definition | |||
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A content is defined as the relation
between: UW1 – a concept, and UW2 – a concept, where: · UW2 is the content or explanation of UW1. |
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| Examples and
Readings |
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| cob | affected co-thing | ||
| indicates a thing that is directly affected by an implicit event done in parallel or an implicit state in parallel | |||
|
cob ( be, thing
) |
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| Detailed Definition | |||
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A gco-objecth is defined as the
relation between: UW1 – an event or state, and UW2 – a thing, where: · UW2 is thought of as directly affected by an implicit event done in parallel or an implicit state in parallel. |
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| Examples and Readings |
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| Related Relations | |||
| · A co-object is different from obj in that the obj is in focus, whereas cob is related to a second, non-focused implicit event or state. |
| con | condition | ||
| indicates a non-focused event or state that conditions a focused event or state | |||
|
con ( be, uw ) |
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| Detailed Definition | |||
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A condition is
defined as the relation between: |
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| Examples and Readings |
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| coo | effected co-thing | ||
| indicates a co-occurrent event or state for a focused event or state | |||
| coo ( be, be ) coo ( be, do ) coo ( be, occur ) coo ( be, thing ) coo ( be, uw(aoj>thing) ) coo ( do, be ) coo ( do, do ) coo ( do, occur ) coo ( do, thing ) coo ( do, uw(aoj>thing) ) coo ( occur, be ) coo ( occur, do ) coo ( occur, occur ) coo ( occur, thing ) coo ( occur, uw(aoj>thing) ) coo ( thing, be ) coo ( thing, do ) coo ( thing, occur ) coo ( thing, thing ) coo ( thing, uw(aoj>thing) ) coo ( uw(aoj>thing), be ) coo ( uw(aoj>thing), do ) coo ( uw(aoj>thing), occur ) coo ( uw(aoj>thing), thing ) coo ( uw(aoj>thing), uw(aoj>thing) ) |
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| Detailed Definition | |||
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A co-occurrence is defined as the
relation between: UW1 – an event or state, and UW2 – an event or state, where: · UW1 is a focused event or state, whereas · UW2 is a co-occurrent event or state, and · UW1 occurs or is true at the same time as UW2. |
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| Examples and Readings |
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| Related Relations | |||
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·
A co-occurrence is different
from seq in that seq describes events or states that do not occur at the same time,
but one after the other, whereas coo
describes events that occur simultaneously. · A co-occurrence is different from tim in that coo relates the times of events or states with other events or states, whereas tim relates events or states directly with points or intervals of time. |
| dur | duration | ||
| indicates a period of time during which an event occurs or a state exists | |||
| dur ( be, do ) dur ( be, event(icl>abstract thing) ) dur ( be, occur ) dur ( be, period(icl>time) ) dur ( be, state(icl>abstract thing) ) dur ( be, thing ) dur ( be, uw(aoj>thing) ) dur ( do, do ) dur ( do, event(icl>abstract thing) ) dur ( do, occur ) dur ( do, period(icl>time) ) dur ( do, state(icl>abstract thing) ) dur ( do, thing ) dur ( do, uw(aoj>thing) ) dur ( occur, do ) dur ( occur, event(icl>abstract thing) ) dur ( occur, occur ) dur ( occur, period(icl>time) ) dur ( occur, state(icl>abstract thing) ) dur ( occur, thing ) dur ( occur, uw(aoj>thing) ) dur ( thing, do ) dur ( thing, event(icl>abstract thing) ) dur ( thing, occur ) dur ( thing, period(icl>time) ) dur ( thing, state(icl>abstract thing) ) dur ( thing, thing ) dur ( thing, uw(aoj>thing) ) dur ( uw(aoj>thing), do ) dur ( uw(aoj>thing), event(icl>abstract thing) ) dur ( uw(aoj>thing), occur ) dur ( uw(aoj>thing), period(icl>time) ) dur ( uw(aoj>thing), state(icl>abstract thing) ) dur ( uw(aoj>thing), thing ) dur ( uw(aoj>thing), uw(aoj>thing) ) |
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| Detailed Definition | |||
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A
duration is defined as the relation between: |
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| Examples and Readings |
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| equ | effected co-thing | ||
| indicates an equivalent concept | |||
|
equ ( uw, uw ) |
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| Detailed Definition | |||
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An equivalent concept is defined as
the relation between: UW1 – a concept, and UW2 – a concept, where: · The UWs are different, and · UW2 is an equivalent concept of UW1. |
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| Examples and Readings |
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| fmt | range/from-to | ||
| indicates a range between two things | |||
|
fmt ( thing, thing ) |
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| Detailed Definition | |||
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A range
(from-to) is defined as the relation between: |
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| Examples and Readings |
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| Related Relations | |||
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·
A range is different from src
and gol in that for src and gol
the initial and final states of certain obj
are characterized with respect to some event, whereas fmt
makes a similar characterization but without linking the endpoints of a
range to some event. · A range is different from plf and plt or tmf and tmt in that fmt defines endpoints of a range without reference to any sort of event, whereas plf, plt, tmf and tmt delimit events. |
| frm | origin | ||
| indicates an initial state of a thing or a thing initially associated with the focused thing | |||
|
frm (
thing, thing ) |
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| Detailed Definition | |||
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An
origin is defined as the relation between: |
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| Examples and
Readings |
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| Related Relations | |||
| · An origin is different from src in that src is a relation used with an event or a state, whereas frm is directly linked to a thing. For instance, ga visitor from Japanh is expressed as gfrm ( visitor(icl>person), Japan(iof>country) )h, whereas ga visitor came from Japanh is expressed as gsrc (come(agt>thing), Japan(iof>country))h and gagt (come(agt>thing), visitor(icl>person) )h. |
| gol | goal/final state | ||
| indicates a final state of object or a thing finally associated with the object of an event | |||
|
gol (
be(aoj>thing,gol>thing), thing ) |
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| Detailed Definition | |||
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A
final state is defined as the relation between: |
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| Examples and
Readings |
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| Related Relations | |||
| A final state is different from tmf and plf in that gol describes qualitative characteristics and not time nor place related to an event. |
| icl | included/a kind of | ||
| indicates an upper concept or a more general concept | |||
|
icl ( uw, uw ) |
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| Detailed Definition | |||
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An
upper concept or a more general concept is defined as the relation
between: |
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| Examples and
Readings |
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| ins | instrument | ||
| indicates an instrument to carry out an event | |||
|
ins ( do, concrete thing ) |
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| Detailed Definition | |||
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An
instrument is defined as the relation between: |
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| Examples and
Readings |
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| Related Relations | |||
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·
An
instrument is different from man
in that man describes an event as a whole, whereas ins characterizes one of the components of the event: the use of the
instrument. And, a manner is an abstract thing whereas an instrument is a
concrete thing. |
| int | intersection | ||
| indicates all common instances to have with a partner concept | |||
|
int ( uw, uw ) |
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| Detailed Definition | |||
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An
intersection is taken between: |
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| Examples and
Readings |
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| Related Relations | |||
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· An intersection is different from and and or in that as a logical operator and makes a union, or makes differences, whereas int makes an intersection. |
| iof | an instance of | ||
| indicates a class concept that an instance belongs to | |||
|
iof ( uw, uw ) |
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| Detailed Definition | |||
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A
class concept is defined as the relation between: |
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| Examples and
Readings |
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| man | manner | ||
| indicates a way to carry out an event or the characteristics of a state | |||
|
man (
be, how ) |
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| Detailed Definition | |||
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A
gmannerh is defined as the relation between: |
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| Examples and
Readings |
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| Related Relations | |||
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· A manner is different from ins or met in that ins describes how an event is carried out in terms of the instruments, met describes how an event is carried out in terms of the component steps of the event, whereas man describes other quantitative or qualitative characteristics of the event as a whole. |
| met | method/means | ||
| indicates a means to carry out an event | |||
|
met (
do, abstract thing ) |
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| Detailed Definition | |||
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A
gmethod or meansh is defined as the relation between: |
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| Examples and
Readings |
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| Related Relations | |||
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·
A
method or means is different from man
in that man describes an event as a whole, whereas met characterizes the component steps or procedures of an action. |
| mod | modification | ||
| indicates a thing that restricts a focused thing | |||
|
mod (
thing, thing ) |
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| Detailed Definition | |||
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A
gmodificationh is defined as the relation between: |
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| Examples and
Readings |
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| Related Relations | |||
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·
A
modification is different from aoj
in that aoj indicates a thing that is in a state or has some characteristic,
whereas mod merely indicates a
restriction of the focused thing, which might indirectly suggest some
characteristics of the thing described. |
| nam | name | ||
| indicates a name of a thing | |||
|
nam ( thing, name(icl>mark) ) |
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| Detailed Definition | |||
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A name
is defined as the relation between: |
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| Examples and
readings |
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| obj | affected thing | ||
| indicates a thing in focus that is directly affected by an event or state | |||
|
obj (
be, thing ) |
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| Detailed Definition | |||
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An
affected thing is defined as the relation between: |
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| Examples and
Readings |
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| Related Relations | |||
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· An affected thing is different from cob in that obj is in focus, whereas cob is related to a second, non-focused implicit event or state. |
| opl | affected place | ||
| indicates a place in focus affected by an event | |||
|
opl (
do(agt>thing,obj>thing,opl>thing), thing ) |
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| Detailed Definition | |||
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An
affected place is defined as the relation between: |
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| Examples and
Readings |
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| Related Relations | |||
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·
An
affected place is different from obj
and cob in that what is affected by the event is a place rather than
other kinds of things. |
| or | disjunction | ||
| indicates a partner to have disjunctive relation to | |||
|
or ( uw, uw ) |
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| Detailed Definition | |||
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A
disjunction is defined as the relation between: |
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| Examples and
Readings |
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| Related Relations | |||
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·
A
disjunction is different from a conjunction in that the items of
disjunction are grouped in order to say that something is true for one or
the other, whereas in a conjunction they are grouped to say that the same
is true for both. A
disjunction in formal logic permits three situations for it to be true:
1) it is true for UW1, 2) it is true for UW2, and 3) it is true for
both. On the other hand, a conjunction only permits the third situation. |
| per | proportion/rate/distribution | ||
| indicates a basis or unit of proportion, rate or distribution | |||
|
per ( thing, thing ) |
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| Detailed Definition | |||
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A proportion,
rate or distribution is defined as the relation between: |
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| Examples and
readings |
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| plc | place | ||
| indicates a place where an event occurs, or a state that is true, or a thing that exists | |||
|
plc (
be, place(icl>thing) ) |
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| Detailed Definition | |||
|
A
place is defined as the relation between: |
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| Examples and
Readings |
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| Related Relations | |||
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·
A place is different from plf
and plt or src and gol
in that plc describes a place with respect to an event as a whole, whereas
these other relations describe the position with respect to parts of an
event. |
| plf | initial place | ||
| indicates a place where an event begins or a state that becomes true | |||
|
plf (
be, place(icl>thing) ) |
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| Detailed Definition | |||
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An
ginitial placeh (or gplace-fromh) is defined as the relation
between: |
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| Examples and
Readings |
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| Related Relations | |||
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·
An
initial place is different from plc
in that plc describes events or states taken as a whole, whereas plf
describes only the initial part of an event or state. |
| plt | final place | ||
| indicates a place where an event ends or a state that becomes false | |||
|
plt (
be, place(icl>thing) ) |
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| Detailed Definition | |||
|
A
final place is defined as the relation between: |
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| Examples and
readings |
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| Related Relations | |||
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·
A
final place is different from plc
in that plc describes events or states taken as a whole, whereas plt
describes only the final part of an event. |
| pof | part of | ||
| indicate a concept of which a focused thing is a part | |||
|
pof ( thing, thing ) |
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| Detailed Definition | |||
|
Part-of
is defined as the relation between: |
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| Examples and
Readings |
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| pos | possessor | ||
| indicates the possessor of a thing | |||
|
pos ( thing, volitional thing ) |
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| Detailed Definition | |||
|
A
possessor is defined as the relation between: |
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| Examples and
readings |
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| ptn | partner | ||
| indicates an indispensable non-focused initiator of an action | |||
|
ptn (
do, thing ) |
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| Detailed Definition | |||
|
A
partner is defined as the relation between: |
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| Examples and
Readings |
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| Related Relations | |||
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·
A
partner is different from agt
in that an agent and its event are in focus, while a partner and its event
are not in focus. |
| pur | purpose | ||
| indicates the purpose or objective of an agent of an event or the purpose of a thing that exists | |||
|
pur (
do, do ) |
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| Detailed Definition | |||
|
A
purpose or objective is defined as the relation between: |
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| Examples and
Readings |
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| Related Relations | |||
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·
A
purpose or objective is different from gol
in that pur describes the desires of an agent, whereas gol describes the state of the object at the end of an event. |
| qua | quantity | ||
| indicates the quantity of a thing or unit | |||
|
qua ( thing, quantity ) |
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| Detailed Definition | |||
|
A
quantity is defined as the relation between: |
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| Examples and
Readings |
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| Related Relations | |||
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·
A
quantity is different from per
in that a quantity is an absolute number or amount, whereas per
is a number or amount relative to some unit of reference (time, distance,
etc.). |
| rsn | reason | ||
| indicates a reason why an event or a state happens | |||
|
rsn (
be, be ) |
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| Detailed Definition | |||
|
A
reason is defined as the relation between: |
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| Examples and
Readings |
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| scn | scene | ||
| indicates a scene where an event occurs, or state is true, or a thing exists | |||
|
scn ( be, thing ) |
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| Detailed Definition | |||
|
A scene is defined
as the relation between: |
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| Examples and Readings |
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| Related Relations | |||
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· A scene is different from plc in that the reference place for plc is in the real place that something happens, whereas for scn it is an abstract or metaphorical world. |
| seq | sequence | ||
| indicates a prior event or state of a focused event or state | |||
|
seq ( do, do ) |
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| Detailed Definition | |||
|
A gsequenceh is
defined as the relation between: |
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| Examples and Readings |
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| Related Relations | |||
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· A sequence is different from coo in that seq describes events or states that do not occur at the same time, but one after the other, whereas coo describes events that occur simultaneously. |
| shd | sentence head | ||
| indicates a number, a mark or a thing that shows the position of a sentence, a paragraph or a chapter in a document or a book | |||
|
shd ( uw, thing ) |
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| Detailed Definition | |||
|
A sentence head is
defined as the relation between: |
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| Examples and
readings |
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| src | source/initial state | ||
| indicates the initial state of an object or thing initially associated with the object of an event | |||
|
src ( be(aoj>thing,gol>thing),
thing ) |
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| Detailed Definition | |||
|
An initial state is
defined as the relation between: |
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| Examples and
readings |
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| Related Relations | |||
|
·
An initial state is different
from tmf and plf in that src describes qualitative characteristics of the object
and not time or place of an event. |
| tim | time | ||
| indicates the time an event occurs or a state is true | |||
|
tim ( be, time(icl>abstract
thing) ) |
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| Detailed Definition | |||
|
Time is defined as
the relation between: |
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| Examples and Readings |
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| Related Relations | |||
|
·
ime is different from tmf and tmt in that time
characterizes the event or state as a whole, whereas tmf and tmt describe
only parts of the event. |
| tmf | initial time | ||
| indicates the time an event starts or a state becomes true | |||
|
tmf ( be, time(icl>abstract
thing) ) |
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| Detailed Definition | |||
|
Initial time is
defined as the relation between: |
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| Examples and Readings |
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| Related Relations | |||
|
·
Initial time is different from tim
in that tmf expresses the time at the beginning of the event or state
whereas tim expresses the time
for the event taken as a whole. |
| tmt | final time | ||
| indicates a time an event ends or a state becomes false | |||
|
tmt ( be, time(icl>abstract
thing) ) |
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| Detailed Definition | |||
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Final time is
defined as the relation between: |
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Final time is different from tim
in that tmt expresses the time at the end of the event or state, whereas tim
expresses the time for the event taken as a whole. |
| to | destination | ||
| indicates a final state of a thing or a final thing (destination) associated with the focused thing | |||
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to ( thing, thing ) |
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| Detailed Definition | |||
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A destination is
defined as the relation between: |
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· A destination is different with gol in that gol is a relation used with an event or a state, whereas to is directly linked to a thing. For instance, ga letter to youh is expressed as gto ( letter(icl>document), you )h, whereas ga letter sent to youh is expressed as ggol ( send(agt>thing,gol>thing,obj>thing), you )h and gobj ( send(agt>thing,gol>thing,obj>thing), letter(icl>document) )h. |
| via | an intermediate place or state | ||
| indicates an intermediate place or state of an event | |||
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via ( do, thing ) |
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| Detailed Definition | |||
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An intermediate
place or state is defined as the relation between: |
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An intermediate place or state is
different from src, plf and tmf in that these
all refer to the beginning of an event, whereas via describes the middle of an event. |
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| Top UNL Expression Relations Attributes Universal Words UNLKB Knowledge Representation in UNL Logical Expression in UNL UNL System |