Question: What country did Francis Drake explore with the capital of London?
Answer(s):
answer: Kingdom of England

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.031t2)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.031t2 ns:people.person.nationality ?x .
?x ns:location.country.capital ns:m.01_c4 . 
}