what is the {point in time} for {André Previn} has {award received} as {Grammy Lifetime Achievement Award} ?
Tell me the year André Previn won the Lifetime Achievement Award at the Grammy's.
In which year did André Previn received the Grammy Lifetime Achievement Award?
SELECT ?j WHERE { ?u property:award_received resource:Grammy_Lifetime_Achievement_Award . resource:André_Previn property:award_received ?u . ?u property:point_in_time ?j }
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} 

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