Question: Which World series did the Baltmore Orioles win prior to October 15,1970?
Answer(s):
answer: 1966 World Series

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.01d6g)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.01d6g ns:sports.sports_team.championships ?x .
?x ns:time.event.end_date ?num .
FILTER (?num < "1970-10-15"^^xsd:dateTime) . 
}