Question: what are population of mandaluyong that is point time is 1975-5-1?
Paraphrase: How many people lived in Mandaluyong in May of 1975?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q9085 p:P1082 ?s . ?s ps:P1082 ?obj . ?s pq:P585 ?x filter(contains(YEAR(?x),'1975')) }