Question: Which languages are spoken by the Yankton Sioux Tribe?
Answer(s):
answer: English Language
answer: Sioux language
answer: French

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ?c)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
?c ns:people.ethnicity.includes_groups ns:m.04cv41j . 
?c ns:people.ethnicity.languages_spoken ?x .
}