Question: did chernihiv oblast start administrative work 199-8-24?
Paraphrase: When did Chernihiv Oblast begin his administrative job?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q167874 p:P131 ?s . ?s ps:P131 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1991')) }