Question: What state is the educational institution that has a grad student named Diana B. Henriques located in?
Answer(s):
answer: Washington, D.C.

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.0glsflj . 
?c ns:organization.organization.headquarters ?y .
?y ns:location.mailing_address.state_province_region ?x .
}