Question: What occupation did the person that said, "In this Revolution no plans have been written for retreat." have?
Answer(s):
answer: Civil rights activist
answer: Pastor
answer: Minister
answer: Humanitarian
answer: Writer
answer: Clergy

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.profession ?x .
}