duchy udchy dcuhy cduhy ucdhy cudhy duhcy udhcy dhucy hducy uhdcy hudcy dchuy cdhuy dhcuy hdcuy chduy hcduy uchdy cuhdy uhcdy hucdy chudy hcudy ducyh udcyh dcuyh cduyh ucdyh cudyh duych udych dyuch yduch uydch yudch dcyuh cdyuh dycuh ydcuh cyduh ycduh ucydh cuydh uycdh yucdh cyudh ycudh duhyc udhyc dhuyc hduyc uhdyc hudyc duyhc udyhc dyuhc yduhc uydhc yudhc dhyuc hdyuc dyhuc ydhuc hyduc yhduc uhydc huydc uyhdc yuhdc hyudc yhudc dchyu cdhyu dhcyu hdcyu chdyu hcdyu dcyhu cdyhu dychu ydchu cydhu ycdhu dhycu hdycu dyhcu ydhcu hydcu yhdcu chydu hcydu cyhdu ychdu hycdu yhcdu uchyd cuhyd uhcyd hucyd chuyd hcuyd ucyhd cuyhd uychd yuchd cyuhd ycuhd uhycd huycd uyhcd yuhcd hyucd yhucd chyud hcyud cyhud ychud hycud yhcud
Note: these 'words' (valid or invalid) are all the permutations of the word duchy. These words are obtained by scrambling the letters in duchy.