gbrar bgrar grbar rgbar brgar rbgar gbarr bgarr gabrr agbrr bagrr abgrr grabr rgabr garbr agrbr ragbr argbr bragr rbagr bargr abrgr rabgr arbgr gbrra bgrra grbra rgbra brgra rbgra gbrra bgrra grbra rgbra brgra rbgra grrba rgrba grrba rgrba rrgba rrgba brrga rbrga brrga rbrga rrbga rrbga gbarr bgarr gabrr agbrr bagrr abgrr gbrar bgrar grbar rgbar brgar rbgar garbr agrbr grabr rgabr argbr ragbr bargr abrgr bragr rbagr arbgr rabgr grarb rgarb garrb agrrb ragrb argrb grrab rgrab grrab rgrab rrgab rrgab garrb agrrb grarb rgarb argrb ragrb rargb arrgb rragb rragb arrgb rargb brarg rbarg barrg abrrg rabrg arbrg brrag rbrag brrag rbrag rrbag rrbag barrg abrrg brarg rbarg arbrg rabrg rarbg arrbg rrabg rrabg arrbg rarbg
Note: these 'words' (valid or invalid) are all the permutations of the word gbrar. These words are obtained by scrambling the letters in gbrar.