What is {employer} of {Galileo Galilei} that is {start time} is {1592-0-0} ?
In 1592, who was Galileo Galilei's employer?
Who was Galileo Galilei's employer in 1592?
SELECT ?n WHERE { ?z property:start_time ?p . resource:Galileo_Galilei property:employer ?z . ?z property:employer ?n . FILTER ( CONTAINS ( YEAR ( ?p ) , '1592' ) ) }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q307> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P108> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P580> <1592-0-0>
} 

SELECT ?obj WHERE { wd:Q307 p:P108 ?s . ?s ps:P108 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1592')) }