Question: When was the population of Dalian 4480000?
Paraphrase: When did Dalian have a population of 4480000?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q74881 p:P1082 ?s . ?s ps:P1082 ?x filter(contains(?x , '4480000')) . ?s pq:P585 ?value}