Question: What south American country closer to the north America continent uses the Mexican peso as domestic trading currency?
Answer(s):
answer: Mexico

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.059g4)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.059g4 ns:base.locations.continents.countries_within ?x .
?x ns:location.country.currency_used ns:m.012ts8 . 
}