Question: What ethnicity groups do Tajiks fall under?
Answer(s):
answer: Hazaras
answer: Pashtun
answer: Tajiks
answer: Parsi
answer: Irani
answer: Baloch people

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.09f5v . 
?c ns:people.ethnicity.includes_groups ?x .
}