Question: What John Frusciante music album was released before March 7, 2014?
Answer(s):
answer: Curtains
answer: Smile From The Streets You Hold
answer: The Brown Bunny
answer: The Empyrean
answer: PBX Funicular Intaglio Zone
answer: Sect In Sgt
answer: Omar Rodriguez Lopez & John Frusciante
answer: Niandra Lades and Usually Just a T-Shirt
answer: DC EP
answer: Outsides
answer: Inside of Emptiness
answer: To Record Only Water for Ten Days
answer: Letur-Lefr
answer: The Will to Death
answer: A Sphere in the Heart of Silence
answer: From the Sounds Inside
answer: Estrus
answer: Going Inside
answer: Demo & Acoustic Shadows Collide With People

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.0191h5)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.0191h5 ns:music.artist.album ?x .
?x ns:music.album.release_date ?num .
FILTER (?num < "2014-04-07"^^xsd:dateTime) . 
}