What is {head of government} of {City of Cape Town} that is {start time} is {2009-5-12} ?
What head of government of Cape Town started 05-12-2009?
SELECT ?obj WHERE { wd:Q1185115 p:P6 ?s . ?s ps:P6 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'2009')) }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q1185115> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P6> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P580> <2009-5-12>
} 

Which government of Cape Town head started 05-12-2009?