Did {Helen_Keller} {member of} {Transport Workers Union of America}?
Did the Transport Workers Union of America have Helen Keller as a member?
Was Helen Keller a member of the Transport Workers Union of America?
ASK WHERE { resource:Helen_Keller property:member_of resource:Transport_Workers_Union_of_America }
 ASK { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q38203> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P463> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q3537776>. } 
ASK WHERE { wd:Q38203 wdt:P463 wd:Q3537776 }