Question: What is the name of the moon for the planet Pluto?
Paraphrase: What is the title of the moon for the planet Pluto?
SPARQL (Wikidata):  select distinct ?sbj where { ?sbj wdt:P397 wd:Q339 . ?sbj wdt:P31 wd:Q2537 } 
Answer: Nix, Hydra, Kerberos, Styx, Charon