What is {award received} of {Mstislav Rostropovich} that is {point in time} is {1981-0-0} ?
what was the award won by Mstislav Rostropovich in the year 1981?
Which award did Mstislav Rostropovich receive in the year 1981?
SELECT ?g WHERE { ?t property:award_received ?g . FILTER ( CONTAINS ( YEAR ( ?e ) , '1981' ) ) . resource:Mstislav_Rostropovich property:award_received ?t . ?t property:point_in_time ?e }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q152043> .
?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> ?obj .
?statement <http://www.wikidata.org/entity/P585> <1981-0-0>
} 

SELECT ?obj WHERE { wd:Q152043 p:P166 ?s . ?s ps:P166 ?obj . ?s pq:P585 ?x filter(contains(YEAR(?x),'1981')) }