what is the {point in time} for {Charles Mingus Jr.} has {award received} as {Grammy Hall of Fame} ?
The Grammy Hall of Fame Award was awarded to Charles Mingus, Jr. in what year?
when did charles mingus jr received the grammy hall of fame award?
SELECT ?p WHERE { ?r property:award_received resource:Grammy_Hall_of_Fame . ?r property:point_in_time ?p . resource:Charles_Mingus property:award_received ?r }
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?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P166> .
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?statement <http://www.wikidata.org/entity/P585> ?value. 
} 

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