Question: What position did John Paul II hold starting on October 10, 1978?
Paraphrase: On 10.10.1978 what position did John Paul II hold?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q989 p:P39 ?s . ?s ps:P39 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1978')) }