Question: What is { sport team member } of { Ian Rush } that is { start time } is { 1980 - 1 - 1 }?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q219354 p:P54 ?s . ?s ps:P54 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1980')) }