what is the {determination method} for {Puerto Princesa} has {population} as {45709.0} ?
How was Puerto Princessa's population of 45,709 calculated?
How was it determined that Puerto Princessa has a population of 45,709?
SELECT ?j WHERE { ?f property:population ?k . resource:Puerto_Princesa property:population ?f . FILTER ( CONTAINS ( ?k , '45709.0' ) ) . ?f property:determination_method ?j }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q111739> .
?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> <45709.0> .
?statement <http://www.wikidata.org/entity/P459> ?value. 
} 

SELECT ?value WHERE { wd:Q111739 p:P1082 ?s . ?s ps:P1082 ?x filter(contains(?x , '45709.0')) . ?s pq:P459 ?value}