What is the {moons of Pluto} for {parent astronomical body} of {Pluto}
The parent astronomical body Pluto has which moons?
Which are the moons of the parent astronomical body of Pluto?
SELECT DISTINCT ?p WHERE { ?p property:parent_astronomical_body resource:Pluto . ?p rdf:type ontology:moon_of_Pluto }
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/P397> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q339> . ?subj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q184246> } 
 select distinct ?sbj where { ?sbj wdt:P397 wd:Q339 . ?sbj wdt:P31 wd:Q184246 } 
Nix Hydra Kerberos Styx Charon