Question: Name a natural satellite of Uranus.
SPARQL (Wikidata):  select distinct ?sbj where { ?sbj wdt:P397 wd:Q324 . ?sbj wdt:P31 wd:Q2537 } 
Answer: Titania, Oberon, Umbriel, Ariel, Cordelia, Ophelia, Bianca Minolta, Cressida, Desdemona, Juliet, Rosalind, Portia, Cupid, Belinda, Puck, Perdita, Mab, Francisco, Caliban, Stephano, Trinculo, Sycorax, Margaret, Prospero, Setebos, Ferdinand