Question: In which time zone is the home of Guinness Foreign Extra Stout (Nigeria) beer?
Answer(s):
answer: West Africa Time Zone

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ?c)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
?c ns:food.beer_country_region.beers_from_here ns:m.04dqnwt . 
?c ns:location.location.time_zones ?x .
}