Question: For what did the actor from the movie "A Conspiracy of Love" go to rehab?
Answer(s):
answer: Alcoholic beverage
answer: Cocaine

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.actor.film ?k .
?k ns:film.performance.film ns:m.0c0l8n9 . 
?c ns:celebrities.celebrity.substance_abuse_problems ?y .
?y ns:celebrities.substance_abuse_problem.substance ?x .
}