what is the {determination method} for {Iloilo City} has {population} as {334539.0} ?
how was it confirmed that the population of Iloilo City is 334,539?
How was the population of Iloilo City confirmed to be 334,539?
SELECT ?l WHERE { ?e property:determination_method ?l . resource:Iloilo_City property:population ?e . ?e property:population ?d . FILTER ( ?d = 334539.0 ) }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q459787> .
?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> <334539.0> .
?statement <http://www.wikidata.org/entity/P459> ?value. 
} 

SELECT ?value WHERE { wd:Q459787 p:P1082 ?s . ?s ps:P1082 ?x filter(contains(?x , '334539.0')) . ?s pq:P459 ?value}