Question: What position did John McEwen hold on the 19th December 1967?
Paraphrase: On 19th December 1967 John McEwen holds which position ?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q23386 p:P39 ?s . ?s ps:P39 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1967')) }