rumes urmes rmues mrues umres mures ruems urems reums erums uerms eurms rmeus mreus remus ermus merus emrus umers muers uemrs eumrs meurs emurs rumse urmse rmuse mruse umrse murse rusme ursme rsume srume usrme surme rmsue mrsue rsmue srmue msrue smrue umsre musre usmre sumre msure smure ruesm uresm reusm erusm uersm eursm rusem ursem rsuem sruem usrem surem resum ersum rseum sreum esrum serum uesrm eusrm userm suerm esurm seurm rmesu mresu remsu ermsu mersu emrsu rmseu mrseu rsmeu srmeu msreu smreu resmu ersmu rsemu sremu esrmu sermu mesru emsru mseru smeru esmru semru umesr muesr uemsr eumsr meusr emusr umser muser usmer sumer msuer smuer uesmr eusmr usemr suemr esumr seumr mesur emsur mseur smeur esmur semur
Note: these 'words' (valid or invalid) are all the permutations of the word rumes. These words are obtained by scrambling the letters in rumes.