poenp openp peonp eponp oepnp eopnp ponep opnep pnoep npoep onpep nopep penop epnop pneop npeop enpop nepop oenpp eonpp onepp noepp enopp neopp poepn opepn peopn epopn oeppn eoppn popen oppen ppoen ppoen oppen popen pepon eppon ppeon ppeon eppon pepon oeppn eoppn opepn poepn epopn peopn ponpe opnpe pnope npope onppe noppe popne oppne ppone ppone oppne popne pnpoe nppoe ppnoe ppnoe nppoe pnpoe onppe noppe opnpe ponpe npope pnope penpo epnpo pnepo npepo enppo neppo pepno eppno ppeno ppeno eppno pepno pnpeo nppeo ppneo ppneo nppeo pnpeo enppo neppo epnpo penpo npepo pnepo oenpp eonpp onepp noepp enopp neopp oepnp eopnp openp poenp eponp peonp onpep nopep opnep ponep npoep pnoep enpop nepop epnop penop npeop pneop
Note: these 'words' (valid or invalid) are all the permutations of the word poenp. These words are obtained by scrambling the letters in poenp.