Question: When did William Blackstone end his time as a Member of the Parliament of the United Kingdom?
Paraphrase: on what date did William Blackstone end his time as a Member of the Parliament of the United Kingdom?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q332449 p:P39 ?s . ?s ps:P39 wd:Q16707842 . ?s pq:P582 ?value}