Question: What is the nationalilty of the artist who had a concert tour named Tour Anfibio's?
Answer(s):
answer: Colombia

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:music.artist.concert_tours ns:m.09ncdd . 
?c ns:people.person.nationality ?x .
}