to which university did both, the Stanford Cardinal and Gerald Reaven go?
SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Stanford_Cardinal> <http://dbpedia.org/ontology/university> ?uri. <http://dbpedia.org/resource/Gerald_Reaven> <http://dbpedia.org/ontology/institution> ?uri}
Stanford_Cardinal Gerald_Reaven