What is {population} of {Iceland} that is {point in time} is {1996-0-0} ?
In 1996, Iceland's population was?
What was Iceland's population in 1996?
SELECT ?r WHERE { ?p property:population ?r . resource:Iceland property:population ?p . ?p property:point_in_time ?n . FILTER ( CONTAINS ( YEAR ( ?n ) , '1996' ) ) }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q189> .
?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> <1996-0-0>
} 

SELECT ?obj WHERE { wd:Q189 p:P1082 ?s . ?s ps:P1082 ?obj . ?s pq:P585 ?x filter(contains(YEAR(?x),'1996')) }