Question: What group was Hitler involved with that also published the Volkischer Beobachter?
Answer(s):
answer: Nazi Party

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:government.politician.party ?y .
?y ns:government.political_party_tenure.party ?x .
?x ns:book.periodical_publisher.periodicals_published ?c .
?c ns:book.periodical_publisher_period.periodical ns:m.03hqd0 . 
}