what is the {point in time} for {Maine} has {population} as {847226.0} ?
What year was Maine's population estimated at 847,226 people?
When did Maine have a population of 847,226 people?
SELECT ?y WHERE { ?v property:point_in_time ?y . FILTER ( CONTAINS ( ?x , '847226.0' ) ) . ?v property:population ?x . resource:Maine property:population ?v }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q724> .
?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> <847226.0> .
?statement <http://www.wikidata.org/entity/P585> ?value. 
} 

SELECT ?value WHERE { wd:Q724 p:P1082 ?s . ?s ps:P1082 ?x filter(contains(?x , '847226.0')) . ?s pq:P585 ?value}