mybaa ymbaa mbyaa bmyaa ybmaa bymaa myaba ymaba mayba amyba yamba aymba mbaya bmaya mabya ambya bamya abmya ybama byama yabma aybma bayma abyma mybaa ymbaa mbyaa bmyaa ybmaa bymaa myaba ymaba mayba amyba yamba aymba mbaya bmaya mabya ambya bamya abmya ybama byama yabma aybma bayma abyma myaab ymaab mayab amyab yamab aymab myaab ymaab mayab amyab yamab aymab maayb amayb maayb amayb aamyb aamyb yaamb ayamb yaamb ayamb aaymb aaymb mbaay bmaay mabay ambay bamay abmay mbaay bmaay mabay ambay bamay abmay maaby amaby maaby amaby aamby aamby baamy abamy baamy abamy aabmy aabmy ybaam byaam yabam aybam bayam abyam ybaam byaam yabam aybam bayam abyam yaabm ayabm yaabm ayabm aaybm aaybm baaym abaym baaym abaym aabym aabym
Note: these 'words' (valid or invalid) are all the permutations of the word mybaa. These words are obtained by scrambling the letters in mybaa.