Question: Which empire with a current population greater than 6500000 was ruled by Maria Theresa?
Answer(s):
answer: Hungary

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.0czh6)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.0czh6 ns:royalty.monarch.kingdom ?x .
?x ns:topic_server.population_number ?num .
FILTER (xsd:integer(?num) > 6500000) . 
}