abbis babis abbis babis bbais bbais abibs baibs aibbs iabbs biabs ibabs abibs baibs aibbs iabbs biabs ibabs bbias bbias bibas ibbas bibas ibbas abbsi babsi abbsi babsi bbasi bbasi absbi basbi asbbi sabbi bsabi sbabi absbi basbi asbbi sabbi bsabi sbabi bbsai bbsai bsbai sbbai bsbai sbbai abisb baisb aibsb iabsb biasb ibasb absib basib asbib sabib bsaib sbaib aisbb iasbb asibb saibb isabb siabb bisab ibsab bsiab sbiab isbab sibab abisb baisb aibsb iabsb biasb ibasb absib basib asbib sabib bsaib sbaib aisbb iasbb asibb saibb isabb siabb bisab ibsab bsiab sbiab isbab sibab bbisa bbisa bibsa ibbsa bibsa ibbsa bbsia bbsia bsbia sbbia bsbia sbbia bisba ibsba bsiba sbiba isbba sibba bisba ibsba bsiba sbiba isbba sibba
Note: these 'words' (valid or invalid) are all the permutations of the word abbis. These words are obtained by scrambling the letters in abbis.