provide an "equals" method.
provide an "equals" method.

AmeBel/relex,AmeBel/relex,rodsol/relex-temp,linas/relex,ainishdave/relex,ainishdave/relex,rodsol/relex,virneo/relex,virneo/relex,virneo/relex,linas/relex,rodsol/relex,rodsol/relex,leungmanhin/relex,rodsol/relex,williampma/relex,williampma/relex,rodsol/relex-temp,ainishdave/relex,williampma/relex,rodsol/relex-temp,anitzkin/relex,williampma/relex,anitzkin/relex,opencog/relex,opencog/relex,linas/relex,leungmanhin/relex,AmeBel/relex,rodsol/relex-temp,ainishdave/relex,anitzkin/relex,anitzkin/relex,virneo/relex,leungmanhin/relex,anitzkin/relex,opencog/relex,rodsol/relex-temp