abain baain aabin aabin baain abain abian baian aiban iaban biaan ibaan aaibn aaibn aiabn iaabn aiabn iaabn baian abian biaan ibaan aiban iaban abani baani aabni aabni baani abani abnai banai anbai nabai bnaai nbaai aanbi aanbi anabi naabi anabi naabi banai abnai bnaai nbaai anbai nabai abina baina aibna iabna biana ibana abnia bania anbia nabia bnaia nbaia ainba ianba aniba naiba inaba niaba binaa ibnaa bniaa nbiaa inbaa nibaa aainb aainb aianb iaanb aianb iaanb aanib aanib anaib naaib anaib naaib ainab ianab aniab naiab inaab niaab ainab ianab aniab naiab inaab niaab baina abina biana ibana aibna iabna bania abnia bnaia nbaia anbia nabia binaa ibnaa bniaa nbiaa inbaa nibaa ainba ianba aniba naiba inaba niaba
Note: these 'words' (valid or invalid) are all the permutations of the word abain. These words are obtained by scrambling the letters in abain.