What is the {human} for {child} of {Prince George of Cambridge}
Who is Prince George of Cambridge's parents?
 select distinct ?sbj where { ?sbj wdt:P40 wd:Q13590412 . ?sbj wdt:P31 wd:Q5 } 
select distinct ?subj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?subj . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P40> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q13590412> . ?subj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q5> } 
Who are the parents of Prince George of Cambridge?