Question: When did Kostanay have a population of 223558.0?
Paraphrase: which year Kostanay have a population of 223558.0?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q488990 p:P1082 ?s . ?s ps:P1082 ?x filter(contains(?x , '223558.0')) . ?s pq:P585 ?value}