@prefix log: <http://www.w3.org/2000/10/swap/log#>.
@prefix owl: <http://www.w3.org/2002/07/owl#>.
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>.
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.

{?A owl:disjointWith ?B. ?X a ?A. ?Y a ?B } => {?X owl:differentFrom ?Y}.
{?A owl:disjointWith ?B. ?X a ?A. ?X a ?B} => false.