rrior rrior riror irror riror irror rroir rroir rorir orrir rorir orrir riorr irorr roirr orirr iorrr oirrr riorr irorr roirr orirr iorrr oirrr rriro rriro rirro irrro rirro irrro rrrio rrrio rrrio rrrio rrrio rrrio rirro irrro rriro rriro irrro rirro rirro irrro rriro rriro irrro rirro rrori rrori rorri orrri rorri orrri rrroi rrroi rrroi rrroi rrroi rrroi rorri orrri rrori rrori orrri rorri rorri orrri rrori rrori orrri rorri riorr irorr roirr orirr iorrr oirrr riror irror rrior rrior irror riror rorir orrir rroir rroir orrir rorir iorrr oirrr irorr riorr orirr roirr riorr irorr roirr orirr iorrr oirrr riror irror rrior rrior irror riror rorir orrir rroir rroir orrir rorir iorrr oirrr irorr riorr orirr roirr
Note: these 'words' (valid or invalid) are all the permutations of the word rrior. These words are obtained by scrambling the letters in rrior.