What is {number of out of school children} of {continent} of {Slave River} ?
What is the number of out of school children of the landmass of Slave Waterway ?
What is the number of out of school children of the  continent of Slave River ?
SELECT ?w WHERE { resource:Slave_River property:continent ?p . ?p property:number_of_out-of-school_children ?w }
SELECT ?answer WHERE { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q2226> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P30>. ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?X . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?X. ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P2573> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer . }
SELECT ?answer WHERE { wd:Q2226 wdt:P30 ?X . ?X wdt:P2573 ?answer}
9399756