A relationship between an Activity-Spec and an Effect whereby the Effect (Planning-Constraint) must be satisfied in order for the Activity-Spec to be Executed.
(Subrelation-Of Intended-Purpose Specified-Effect) (Inherited-Facet-Value Slot-Value-Type Activity-Spec Specified-Effect Effect) (Inherited-Facet-Value Minimum-Slot-Cardinality Activity-Spec Specified-Effect 1)