What is {population} of {Mito} that is {point in time} is {2018-4-1} ?
What was Mito's population on April 1, 2018?
What was the population of Mito on 4/1/2018?
SELECT ?d WHERE { resource:Mito property:population ?b . FILTER ( CONTAINS ( YEAR ( ?q ) , '2018' ) ) . ?b property:point_in_time ?q . ?b property:population ?d }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q204249> .
?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> <2018-4-1>
} 

SELECT ?obj WHERE { wd:Q204249 p:P1082 ?s . ?s ps:P1082 ?obj . ?s pq:P585 ?x filter(contains(YEAR(?x),'2018')) }