Question: What is Charlotte, North Carolina known for, and is the museum that was established after 1981?
Answer(s):
answer: Carolinas Aviation Museum
answer: Billy Graham Library

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.0fsb8)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.0fsb8 ns:travel.travel_destination.tourist_attractions ?x .
?x ns:architecture.museum.established ?num .
FILTER (?num > "1981"^^xsd:dateTime) . 
}