Question: At what university with 3100 postgraduates enrolled did Rudolf Virchow conduct his research?
Answer(s):
answer: University of Würzburg

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.011kz4)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.011kz4 ns:people.person.employment_history ?y .
?y ns:business.employment_tenure.company ?x .
?x ns:education.university.number_of_postgraduates ?c .
?c ns:measurement_unit.dated_integer.number "3100" . 
}