PREFIX dbpedia: <http://dbpedia.org/resource/>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX nobel: <http://data.nobelprize.org/terms/>
PREFIX dbpedia-owl: <http://dbpedia.org/ontology/>
PREFIX owl: <http://www.w3.org/2002/07/owl#>
SELECT DISTINCT (COUNT(?laureate) AS ?nr) ?university
WHERE {
  ?instance a nobel:LaureateAward.
  ?instance nobel:laureate ?laureate.
  ?laureate dbpedia-owl:affiliation ?university
}
GROUP BY ?university
ORDER BY DESC (?nr)