The Legal-Entity in a Potential-Sale that may become theActual-Customer in a possible future Sale.
(=> (Customer ?X)
(Or (Exists (?Sale) (Actual-Customer ?Sale ?X))
(Exists (?Potential-Sale)
(Potential-Customer ?Potential-Sale ?X))
(Exists (?Sale-Offer)
(Specified-Potential-Customer ?Sale-Offer ?X))))
(<=> (Customer ?X)
(And (Legal-Entity ?X)
(Actor ?X)
(Or (Exists (?Sale) (Actual-Customer ?Sale ?X))
(Exists (?Potential-Sale)
(Potential-Customer ?Potential-Sale ?X))
(Exists (?Sale-Offer)
(Specified-Potential-Customer ?Sale-Offer ?X)))))