Question: What film released on 1998-09-07 starred Ian Somerhalder?
Answer(s):
answer: Celebrity

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.044mvs)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.044mvs ns:film.actor.film ?y .
?y ns:film.performance.film ?x .
?x ns:film.film.initial_release_date "1998-09-07"^^xsd:dateTime . 
}