what is the {point in time} for {B. F. Skinner} has {award received} as {E. L. Thorndike Award} ?
The E.L. Thorndike Award was received by B.F Skinner at what time?
At what point in time did B.F Skinner receive the E.L. Thorndike Award?
SELECT ?b WHERE { ?q property:point_in_time ?b . resource:B._F._Skinner property:award_received ?q . ?q property:award_received resource:E._L._Thorndike_Award }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q213195> .
?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/Q5322016> .
?statement <http://www.wikidata.org/entity/P585> ?value. 
} 

SELECT ?value WHERE { wd:Q213195 p:P166 ?s . ?s ps:P166 wd:Q5322016 . ?s pq:P585 ?value}