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Sigma KEE - agent
(agent ?PROCESS ?AGENT) means that ?AGENT is an active determinant, either animate or inanimate, of the Process ?PROCESS, with or without voluntary intention. For example, Eve is an agent in the following proposition: Eve bit an apple.
Parents involved in event (involvedInEvent ?EVENT ?THING) means that in the Process ?EVENT, the Entity ?THING plays some CaseRole.
Children arresting officerThe PoliceOfficer who is PlacingUnderArrest the arrested individual.
 contest participant(contestParticipant ?CONTEST ?AGENT) means that ?AGENT is one of the sides in the Contest ?CONTEST. For example, if the ?CONTEST is a football game, then ?AGENT would be one of the opposing teams. For another example, if ?CONTEST is a Battle, then ?AGENT would be one of the sides fighting each other.
 gains control(gainsControl ?EVENT ?AGENT) means that during ?EVENT, ?AGENT gains control of the patient (object).
 invading virus(invadingVirus ?CELLINV ?VIRUS) means that ?VIRUS is a virus that invades a host cell in the cell invasion ?CELLINV. If the invasion results in a replication, it is the genome of the invading virus that is replicated. The original virus is destroyed but replicated in the process.
 perpetratorA agent of a CriminalAction. Note that for some crimes like manslaughter the agent may not necessarily want the outcome. Note also that this relationship entails guilt.
 plaintiff(plaintiff ?ACTION ?AGENT) means that ?AGENT is responsible for initiating the LegalAction ?ACTION.
 prosecutorThe representative of the state in a criminal case. The goal of the prosecutor is an adversarial system is to convict the defendant.
 service provider(serviceProvider ?EVENT ?AGENT) means that ?AGENT is the supplier of the service provided in ?EVENT.
InstancesabstractProperties or qualities as distinguished from any particular embodiment of the properties/qualities in a physical medium. Instances of Abstract can be said to exist in the same sense as mathematical objects such as sets and relations, but they cannot exist at a particular place and time without some physical encoding or embodiment.
 antisymmetric relationBinaryRelation ?REL is an AntisymmetricRelation if for distinct ?INST1 and ?INST2, (?REL ?INST1 ?INST2) implies not (?REL ?INST2 ?INST1). In other words, for all ?INST1 and ?INST2, (?REL ?INST1 ?INST2) and (?REL ?INST2 ?INST1) imply that ?INST1 and ?INST2 are identical. Note that it is possible for an AntisymmetricRelation to be a ReflexiveRelation.
 asymmetric relationA BinaryRelation is asymmetric if and only if it is both an AntisymmetricRelation and an IrreflexiveRelation.
 binary predicateA Predicate relating two items - its valence is two.
 binary relationBinaryRelations are relations that are true only of pairs of things. BinaryRelations are represented as slots in frame systems.
 case roleThe Class of Predicates relating the spatially distinguished parts of a Process. CaseRoles include, for example, the agent, patient or destination of an action, the flammable substance in a burning process, or the water that falls in rain.
 entityThe universal class of individuals. This is the root node of the ontology.
 inheritable relationThe class of Relations whose properties can be inherited downward in the class hierarchy via the subrelation Predicate.
 irreflexive relationRelation ?REL is irreflexive iff (?REL ?INST ?INST) holds for no value of ?INST.
 partial valued relationA Relation is a PartialValuedRelation just in case it is not a TotalValuedRelation, i.e. just in case assigning values to every argument position except the last one does not necessarily mean that there is a value assignment for the last argument position. Note that, if a Relation is both a PartialValuedRelation and a SingleValuedRelation, then it is a partial function.
 predicateA Predicate is a sentence-forming Relation. Each tuple in the Relation is a finite, ordered sequence of objects. The fact that a particular tuple is an element of a Predicate is denoted by '(*predicate* arg_1 arg_2 .. arg_n)', where the arg_i are the objects so related. In the case of BinaryPredicates, the fact can be read as `arg_1 is *predicate* arg_2' or `a *predicate* of arg_1 is arg_2'.
 relationThe Class of relations. There are three kinds of Relation: Predicate, Function, and List. Predicates and Functions both denote sets of ordered n-tuples. The difference between these two Classes is that Predicates cover formula-forming operators, while Functions cover term-forming operators. A List, on the other hand, is a particular ordered n-tuple.
Belongs to Class asymmetric relation

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