@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#>.

{?X owl:sameAs ?Y} => {?Y owl:sameAs ?X}.
{?X owl:sameAs ?Y. ?Y owl:sameAs ?Z} => {?X owl:sameAs ?Z}.
{?X owl:sameAs ?Y. ?X owl:differentFrom ?Y} => false.