What is {population} of {Azerbaijan} that is {point in time} is {1994-0-0} ?
How many people lived in Azerbaijan in 1994 ?
What was the population of Azerbaijan in 1994?
SELECT ?a WHERE { resource:Azerbaijan property:population ?n . FILTER ( CONTAINS ( YEAR ( ?d ) , '1994' ) ) . ?n property:population ?a . ?n property:point_in_time ?d }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q227> .
?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> <1994-0-0>
} 

SELECT ?obj WHERE { wd:Q227 p:P1082 ?s . ?s ps:P1082 ?obj . ?s pq:P585 ?x filter(contains(YEAR(?x),'1994')) }