what is the {point in time} for {Bob Kahn} has {award received} as {Marconi Prize} ?
Did Bob get his Marconi Prize?
When did Bob Kahn receive the Marconi Prize?
SELECT ?m WHERE { resource:Bob_Kahn property:award_received ?m . ?m property:point_in_time ?m . ?m property:award_received resource:Marconi_Prize }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q62843> .
?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/Q473292> .
?statement <http://www.wikidata.org/entity/P585> ?value. 
} 

SELECT ?value WHERE { wd:Q62843 p:P166 ?s . ?s ps:P166 wd:Q473292 . ?s pq:P585 ?value}