Question: Which Yemen export countries speak french as their first language?
Answer(s):
answer: Djibouti

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.064_8sq)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.064_8sq ns:language.human_language.countries_spoken_in ?x .
?x ns:location.country.official_language ns:m.064_8sq .
?x ns:location.statistical_region.places_exported_to ?c .
?c ns:location.imports_and_exports.exported_to ns:m.01z88t . 
}