Question: What is the name of the country of which Nina Dobrev is a national with an iso 3166-1 alpha-3 of BG?
Answer(s):
answer: Bulgaria

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.027nwk2)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.027nwk2 ns:people.person.nationality ?x .
?x ns:location.country.iso3166_1_alpha2 "BG" . 
}