What is {chairperson} of {Free Software Foundation} that is {start time} is {1985-10-4} ?
The Free Software Foundation chairperson on October 4th, 1985 was whom?
Who was the chairperson of Free Software Foundation in 1985-10-4?
SELECT ?t WHERE { FILTER ( CONTAINS ( YEAR ( ?k ) , '1985' ) ) . resource:Free_Software_Foundation property:chairperson ?w . ?w property:chairperson ?t . ?w property:start_time ?k }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q48413> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P488> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P580> <1985-10-4>
} 

SELECT ?obj WHERE { wd:Q48413 p:P488 ?s . ?s ps:P488 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1985')) }