Question: What famous buildings in Chicago that were opened after 5-12-1930?
Answer(s):
answer: Muslim Community Center
answer: Museum of Science and Industry
answer: John Hancock Center
answer: Willis Tower

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.01_d4)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.01_d4 ns:travel.travel_destination.tourist_attractions ?x .
?x ns:architecture.structure.opened ?num .
FILTER (?num > "1930-05-12"^^xsd:dateTime) . 
}