Which hockey teams have had people playing as Defenceman?
SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/property/position> <http://dbpedia.org/resource/Defenceman> . ?x <http://dbpedia.org/property/playedFor> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/IceHockeyPlayer>}
Defenceman