bawn abwn bwan wban awbn wabn banw abnw bnaw nbaw anbw nabw bwna wbna bnwa nbwa wnba nwba awnb wanb anwb nawb wnab nwab
Note: these 'words' (valid or invalid) are all the permutations of the word bawn. These words are obtained by scrambling the letters in bawn.