What is {population} of {Richmond} that is {point in time} is {2011-7-1} ?
As of July of 2011, how many people lived in Richmond?
What is the population of Richmond at 2011-7-1?
SELECT ?y WHERE { ?g property:population ?y . ?g property:point_in_time ?m . resource:Richmond property:population ?g . FILTER ( CONTAINS ( YEAR ( ?m ) , '2011' ) ) }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q43421> .
?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> <2011-7-1>
} 

SELECT ?obj WHERE { wd:Q43421 p:P1082 ?s . ?s ps:P1082 ?obj . ?s pq:P585 ?x filter(contains(YEAR(?x),'2011')) }