clarify the usage ot truth query rule.
clarify the usage ot truth query rule.

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