what is the {point in time} for {René Clair} has {award received} as {Louis Delluc Prize} ?
When did René Clair receive the Louis Delluc Prize?
SELECT ?value WHERE { wd:Q55388 p:P166 ?s . ?s ps:P166 wd:Q734335 . ?s pq:P585 ?value}
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q55388> .
?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/Q734335> .
?statement <http://www.wikidata.org/entity/P585> ?value. 
} 

In what year did Rene Clair receive the Louis Delluc Price?