Question: Which university with the most postgraduates did Albert Einstein teach at?
Answer(s):
answer: Charles University in Prague

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.0jcx)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.0jcx ns:people.person.employment_history ?y .
?y ns:business.employment_tenure.company ?x .
?x ns:common.topic.notable_types ns:m.01y2hnl .
?x ns:education.university.number_of_postgraduates ?c .
?c ns:measurement_unit.dated_integer.number ?num .
}
ORDER BY DESC(xsd:integer(?num)) LIMIT 1