what is the {point in time} for {Barry Humphries} has {award received} as {Centenary Medal} ?
When was the Centenray medal awarded to Barry Humphries?
When did Barry Humphries receive the Centenray medal?
SELECT ?m WHERE { resource:Barry_Humphries property:award_received ?y . ?y property:point_in_time ?m . ?y property:award_received resource:Centenary_Medal }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q734221> .
?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/Q2393205> .
?statement <http://www.wikidata.org/entity/P585> ?value. 
} 

SELECT ?value WHERE { wd:Q734221 p:P166 ?s . ?s ps:P166 wd:Q2393205 . ?s pq:P585 ?value}