Question: What continent is the country in Greenwich Mean Time Zone that was a part of Roman Empire is in?
Answer(s):
answer: Europe

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.06cmp)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.06cmp ns:location.location.partially_contained_by ?y .
?y ns:location.partial_containment_relationship.partially_contained_by ?x .
?x ns:location.location.time_zones ns:m.03bdv . 
}