Question: Which continent, home to the country of China, was the filming location of the movie "Hong Kong Confidential?"?
Answer(s):
answer: Asia

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:film.film_location.featured_in_films ns:m.0czd0y4 . 
?c ns:base.locations.countries.continent ?x .
}