SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/property/leaderTitle> <http://dbpedia.org/resource/San_Francisco_Board_of_Supervisors> . ?uri <http://dbpedia.org/property/constituency> ?x . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/OfficeHolder>}
Which politician's constituency is led by the SF Board of Supervisors?
SELECT DISTINCT ?t WHERE { ?t property:constituency ?q . ?t rdf:type ontology:Office_Holder . ?q property:leader_title resource:San_Francisco_Board_of_Supervisors }
Harvey Milk
[Harvey Milk] is the office holder whose constituency's leader title is San Francisco Board of Supervisors.
[Harvey Milk] is an politician whose constituency is called the San Francisco Board of Supervisors.