Question: Who gave the {date of the end} of {mentor} of {Muslim ibn al-Hajjaj} ?
Paraphrase: Tell me who gave the {date of the end} of {mentor} to {Muslim ibn al-Hajjaj}
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q140124 wdt:P1066 ?X . ?X wdt:P570 ?answer}
Answer: 0855-08-06T00:00:00Z, 0870-09-05T00:00:00Z, 0853-02-02T00:00:00Z, 0848-01-01T00:00:00Z, 0869-01-01T00:00:00Z