Question: What languages are used in the country with the position title Prime Minister of Belgium?
Answer(s):
answer: Dutch Language
answer: Picard Language
answer: West Flemish
answer: German 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:government.governmental_jurisdiction.governing_officials ?k .
?k ns:government.government_position_held.office_position_or_title ns:m.0df7_c8 . 
?c ns:location.country.languages_spoken ?x .
}