what is the {determination method} for {Gaza City} has {population} as {515556} ?
Gaza City has a population of what?
What is the population of Gaza City?
SELECT ?k WHERE { ?i property:population ?k . FILTER ( ?k = 515556 ) . ?i property:determination_method ?k . resource:Gaza_City property:population ?i }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q47492> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1082> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <515556> .
?statement <http://www.wikidata.org/entity/P459> ?value. 
} 

SELECT ?value WHERE { wd:Q47492 p:P1082 ?s . ?s ps:P1082 ?x filter(contains(?x , '515556')) . ?s pq:P459 ?value}