wgmd gwmd wmgd mwgd gmwd mgwd wgdm gwdm wdgm dwgm gdwm dgwm wmdg mwdg wdmg dwmg mdwg dmwg gmdw mgdw gdmw dgmw mdgw dmgw
Note: these 'words' (valid or invalid) are all the permutations of the word wgmd. These words are obtained by scrambling the letters in wgmd.