What is {nominated for} of {Maria Montessori} that is {point in time} is {1950-1-1} ?
Which was the award that Maria Monessori got nominated for in 1950?
What award was Maria Montessori nominated for on January 1, 1950?
SELECT ?n WHERE { ?s property:point_in_time ?k . ?s property:nominated_for ?n . resource:Maria_Montessori property:nominated_for ?s . FILTER ( CONTAINS ( YEAR ( ?k ) , '1950' ) ) }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q131117> .
?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> ?obj .
?statement <http://www.wikidata.org/entity/P585> <1950-1-1>
} 

SELECT ?obj WHERE { wd:Q131117 p:P1411 ?s . ?s ps:P1411 ?obj . ?s pq:P585 ?x filter(contains(YEAR(?x),'1950')) }