Question: in the film with the soundtrack "Private Parts: The Album," who played Howard Stern?
Answer(s):
answer: Him/Herself

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.soundtrack ns:m.01g6g4q . 
?c ns:film.film.starring ?y .
?y ns:film.performance.special_performance_type ?x .
?y ns:film.performance.actor ns:m.0sx5w .
}