What is {electorate} of {Muntinlupa} that is {point in time} is {2004-4-28} ?
What was the electorate of Muntinlupa on April 28, 2004?
SELECT ?obj WHERE { wd:Q17176 p:P1831 ?s . ?s ps:P1831 ?obj . ?s pq:P585 ?x filter(contains(YEAR(?x),'2004')) }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q17176> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1831> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P585> <2004-4-28>
} 

On April 28, 2004, what was the electorate of Muntinlupa?