List the mascot of the universities which are a part of National Collegiate Athletic Association.
SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/property/athletics> <http://dbpedia.org/resource/National_Collegiate_Athletic_Association> . ?x <http://dbpedia.org/property/mascot> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/University>}
National_Collegiate_Athletic_Association