what is the {determination method} for {Los Ríos Region} has {population} as {380131} ?
What information was used to determine a population of 380131 in the Los Rios Region?
How was the population of the Los Rios Region determined to be 380131?
SELECT ?a WHERE { resource:Los_Ríos_Region property:population ?d . ?d property:population ?k . FILTER ( ?k = 380131 ) . ?d property:determination_method ?a }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q2177> .
?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> <380131> .
?statement <http://www.wikidata.org/entity/P459> ?value. 
} 

SELECT ?value WHERE { wd:Q2177 p:P1082 ?s . ?s ps:P1082 ?x filter(contains(?x , '380131')) . ?s pq:P459 ?value}