grewn rgewn gerwn egrwn regwn ergwn grwen rgwen gwren wgren rwgen wrgen gewrn egwrn gwern wgern ewgrn wegrn rewgn erwgn rwegn wregn ewrgn wergn grenw rgenw gernw egrnw regnw ergnw grnew rgnew gnrew ngrew rngew nrgew genrw egnrw gnerw ngerw engrw negrw rengw erngw rnegw nregw enrgw nergw grwne rgwne gwrne wgrne rwgne wrgne grnwe rgnwe gnrwe ngrwe rngwe nrgwe gwnre wgnre gnwre ngwre wngre nwgre rwnge wrnge rnwge nrwge wnrge nwrge gewnr egwnr gwenr wgenr ewgnr wegnr genwr egnwr gnewr ngewr engwr negwr gwner wgner gnwer ngwer wnger nwger ewngr wengr enwgr newgr wnegr nwegr rewng erwng rweng wreng ewrng werng renwg ernwg rnewg nrewg enrwg nerwg rwneg wrneg rnweg nrweg wnreg nwreg ewnrg wenrg enwrg newrg wnerg nwerg
Note: these 'words' (valid or invalid) are all the permutations of the word grewn. These words are obtained by scrambling the letters in grewn.