what is the {point in time} for {U2} has {award received} as {Artist of the Year} ?
When did U2 recieve the Artist of the Year award?
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select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q396> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P166> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q19858055> .
?statement <http://www.wikidata.org/entity/P585> ?value. 
} 

U2 received the Artist of the Year award in what year?