What is {population} of {Plzeň Region} that is {point in time} is {2016-1-1} ?
On January 1st, 2016 what was the population for the Pizen Region?
What was the population of the Pizen Region on 1-1-2016?
SELECT ?g WHERE { ?h property:point_in_time ?d . resource:Plzeň_Region property:population ?h . ?h property:population ?g . FILTER ( CONTAINS ( YEAR ( ?d ) , '2016' ) ) }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q46070> .
?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> ?obj .
?statement <http://www.wikidata.org/entity/P585> <2016-1-1>
} 

SELECT ?obj WHERE { wd:Q46070 p:P1082 ?s . ?s ps:P1082 ?obj . ?s pq:P585 ?x filter(contains(YEAR(?x),'2016')) }