What is {located in the administrative territorial entity} of {Chernihiv Oblast} that is {start time} is {1991-8-24} ?
did chernihiv oblast start administrative work 199-8-24?
SELECT ?obj WHERE { wd:Q167874 p:P131 ?s . ?s ps:P131 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1991')) }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q167874> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P131> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P580> <1991-8-24>
} 

When did Chernihiv Oblast begin his administrative job?