what is the {point in time} for {Irving Langmuir} has {nominated for} as {Nobel Prize in Chemistry} ?
Irving Langmuir was nominated for a Nobel prize in chemistry in which year?
When was Irving Langmuir nominated for a Nobel Prize in Chemistry?
SELECT ?z WHERE { resource:Irving_Langmuir property:nominated_for ?t . ?t property:nominated_for resource:Nobel_Prize_in_Chemistry . ?t property:point_in_time ?z }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q184286> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1411> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q44585> .
?statement <http://www.wikidata.org/entity/P585> ?value. 
} 

SELECT ?value WHERE { wd:Q184286 p:P1411 ?s . ?s ps:P1411 wd:Q44585 . ?s pq:P585 ?value}