Question: Which native English speaking country's capital is Edinburgh?
Answer(s):
answer: Kingdom of Great Britain

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.02h40lc)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.02h40lc ns:language.human_language.main_country ?x .
?x ns:location.country.capital ns:m.02m77 . 
}