Question: Which site structures in Galway Ireland, were opened after 1852?
Answer(s):
answer: Galway Sportsgrounds
answer: Cathedral of Our Lady Assumed into Heaven and St Nicholas, Galway

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.0m__z)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.0m__z ns:travel.travel_destination.tourist_attractions ?x .
?x ns:architecture.structure.opened ?num .
FILTER (?num > "1852"^^xsd:dateTime) . 
}