[EntityID] GENI [SelfReachable] UCLA.ACMofficer<--Mike UCLA.CTFcontestant<--UCLA.ACMofficer.CTFcontestant [PolicyReachable] GENI.CTFaccess<--ACM.CTFrep.CTFcontestant ACM.CTFrep<--USC ACM.CTFrep<--MIT ACM.CTFrep<--UCLA [IssuerTracesAll] [IssuerTracesDef] CTFrep [SubjectTraceable] CTFcontestant student ACMofficer [AccessControl] [Ack]