Question: Which World Series did the Orioles play in prior to October 16,1983?
Answer(s):
answer: 1966 World Series
answer: 1970 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 < "1983-10-16"^^xsd:dateTime) . 
}