(=> (Inherited-Through-Class-Of-Relation ?R)
(=> (And (Holds ?R ?X ?C1)
(Class ?C1)
(Class ?C2)
(Subclass-Of ?C2 ?C1))
(Holds ?R ?X ?C2)))
(<=> (Inherited-Through-Class-Of-Relation ?R)
(And (Binary-Relation ?R)
(=> (And (Holds ?R ?X ?C1)
(Class ?C1)
(Class ?C2)
(Subclass-Of ?C2 ?C1))
(Holds ?R ?X ?C2))))