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Entity > Abstract > Class > Relation > Predicate > TernaryPredicate > orientation

orientation
subject			fact

orientation	documentation A general Predicate for indicating how two Objects are oriented with respect to one another. For example, (orientation ?OBJ1 ?OBJ2 North) means that ?OBJ1 is north of ?OBJ2, and (orientation ?OBJ1 ?OBJ2 Vertical) means that ?OBJ1 is positioned vertically with respect to ?OBJ2
	has domain1 Object
	has domain2 Object
	has domain3 DirectionAttribute
	is an instance of SpatialRelation
	is an instance of TernaryPredicate
SpatialRelation	has axiom (=> (and (instance ?REL SpatialRelation) (holds ?REL ?OBJ1 ?OBJ2)) (overlapsTemporally (WhenFn ?OBJ1) (WhenFn ?OBJ2)))
TernaryPredicate	has axiom (=> (instance ?REL TernaryPredicate) (valence ?REL 3))
Relation	is first domain of domain
	is first domain of domainSubclass
	is first domain of holds
	is first domain of subrelation
	is first domain of valence
	is second domain of subrelation
Predicate	is first domain of singleValued
Class	is third domain of domain
	is third domain of domainSubclass
Abstract	is disjoint from Physical

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