In how many different highschools have people schooled in Penn State Nittany Lions football studied?
SELECT DISTINCT COUNT(?uri) WHERE { ?x <http://dbpedia.org/ontology/school> <http://dbpedia.org/resource/Penn_State_Nittany_Lions_football> . ?x <http://dbpedia.org/property/highschool> ?uri  . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/EducationalInstitution>}
Penn_State_Nittany_Lions_football