dgers gders degrs edgrs gedrs egdrs dgres gdres drges rdges grdes rgdes dergs edrgs dregs rdegs erdgs redgs gerds egrds greds rgeds ergds regds dgesr gdesr degsr edgsr gedsr egdsr dgser gdser dsger sdger gsder sgder desgr edsgr dsegr sdegr esdgr sedgr gesdr egsdr gsedr sgedr esgdr segdr dgrse gdrse drgse rdgse grdse rgdse dgsre gdsre dsgre sdgre gsdre sgdre drsge rdsge dsrge sdrge rsdge srdge grsde rgsde gsrde sgrde rsgde srgde dersg edrsg dresg rdesg erdsg redsg desrg edsrg dserg sderg esdrg sedrg drseg rdseg dsreg sdreg rsdeg srdeg ersdg resdg esrdg serdg rsedg sredg gersd egrsd gresd rgesd ergsd regsd gesrd egsrd gserd sgerd esgrd segrd grsed rgsed gsred sgred rsged srged ersgd resgd esrgd sergd rsegd sregd
Note: these 'words' (valid or invalid) are all the permutations of the word dgers. These words are obtained by scrambling the letters in dgers.