Question: When has Košice been doing as head of government since 2010-12-21?
Paraphrase: What government polices has leader Kosice been pursuing since 2010-12-21?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q25409 p:P6 ?s . ?s ps:P6 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'2010')) }