What is {number of out of school children} of {Chad} that is {point in time} is {2003-1-1} ?
How many out-of-school children were located in Chad in the year 2003?
In 2003, how many out-of-school children were located in Chad?
SELECT ?v WHERE { ?c property:point_in_time ?b . resource:Chad property:number_of_out-of-school_children ?c . FILTER ( CONTAINS ( YEAR ( ?b ) , '2003' ) ) . ?c property:number_of_out-of-school_children ?v }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q657> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P2573> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P585> <2003-1-1>
} 

SELECT ?obj WHERE { wd:Q657 p:P2573 ?s . ?s ps:P2573 ?obj . ?s pq:P585 ?x filter(contains(YEAR(?x),'2003')) }