What is {position held} of {Lin Biao} that is {start time} is {1959-5-25} ?
Which position did Lin Biao held on May 25,1959?.
What position did Lin Biao start on May 25, 1959.
SELECT ?j WHERE { resource:Lin_Biao property:position_held ?a . ?a property:start_time ?p . FILTER ( CONTAINS ( YEAR ( ?p ) , '1959' ) ) . ?a property:position_held ?j }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q315475> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P39> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P580> <1959-5-25>
} 

SELECT ?obj WHERE { wd:Q315475 p:P39 ?s . ?s ps:P39 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1959')) }