What is {population} of {Burundi} that is {point in time} is {1992-0-0} ?
how many people lived in Burundi in 1992?
What was the population of Burundi in 1992?
SELECT ?w WHERE { ?j property:point_in_time ?r . resource:Burundi property:population ?j . ?j property:population ?w . FILTER ( CONTAINS ( YEAR ( ?r ) , '1992' ) ) }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q967> .
?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> <1992-0-0>
} 

SELECT ?obj WHERE { wd:Q967 p:P1082 ?s . ?s ps:P1082 ?obj . ?s pq:P585 ?x filter(contains(YEAR(?x),'1992')) }