a State-Of-Affairs that is either 1) the Intended-Purpose of some Plan, or 2) in a Hold-Purpose relationship with some Actor
(=> (Purpose ?Purpose) (Or (Exists (?Plan) (Intended-Purpose ?Plan ?Purpose)) (Exists (?Actor) (Hold-Purpose ?Actor ?Purpose))))
(<=> (Purpose ?Purpose) (And (State-Of-Affairs ?Purpose) (Qua-Entity ?Purpose) (Or (Exists (?Plan) (Intended-Purpose ?Plan ?Purpose)) (Exists (?Actor) (Hold-Purpose ?Actor ?Purpose)))))