Question: Which country has a calling code of 255 and is one of the countries that Japan imports good from?
Answer(s):
answer: Tanzania

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.03_3d)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.03_3d ns:location.statistical_region.places_imported_from ?y .
?y ns:location.imports_and_exports.imported_from ?x .
?x ns:location.country.calling_code "255" . 
}