Question: What schools were attended by the person who said, "In this Revolution no plans have been written for retreat"?
Answer(s):
answer: Morehouse College
answer: Washington High School
answer: Crozer Theological Seminary
answer: Boston University

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:people.person.quotations ns:m.048j69x . 
?c ns:people.person.education ?y .
?y ns:education.education.institution ?x .
}