Question: When did R. T. Rybak stop being the head of government for Minneapolis?
Paraphrase: What year did Minneapolis governor R.T. Rybak governor's term end
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q36091 p:P6 ?s . ?s ps:P6 wd:Q665300 . ?s pq:P582 ?value}