Question: which is located in the administrative territorial entity of Cherkasy Oblast that has start time of 1991-8-24 ?
Paraphrase: What began in Cherkasy Oblast on 1991-8-24?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q161808 p:P131 ?s . ?s ps:P131 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1991')) }