Question: What religion with sacred site named Calvary did Adolf Hitler follow?
Answer(s):
answer: Christianity

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.07_m9_)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.07_m9_ ns:people.person.religion ?x .
?x ns:religion.religion.sacred_sites ns:m.022dhl . 
}