What is <number of children> of <Grover Cleveland> ?
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How many children does Grover Cleveland have?
SELECT DISTINCT ?j WHERE { resource:Grover_Cleveland property:number_of_children ?j }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q35171> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1971> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer. }
select distinct ?answer where { wd:Q35171 wdt:P1971 ?answer}
5