Question: What is grad student Roy Rogers' educational institution?
Answer(s):
answer: United States of America
answer: Alabama
answer: Tuscaloosa

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:education.educational_institution.students_graduates ?k .
?k ns:education.education.student ns:m.0f1db4 . 
?c ns:location.location.containedby ?x .
}