Question: What language is used in the country where the Albanian lek is used?
Answer(s):
answer: Romani language
answer: Albanian language
answer: Romanian, Macedo Language
answer: Greek Language

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:location.country.currency_used ns:m.01n64b . 
?c ns:location.country.languages_spoken ?x .
}