Question: Which leader of the first Communist party of China once quoted "All reactionaries are paper tigers."?
Answer(s):
answer: Mao Zedong

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.02189)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.02189 ns:organization.organization.founders ?x .
?x ns:people.person.quotations ns:m.048dpdp . 
}