lenis elnis lneis nleis enlis nelis leins elins liens ilens eilns ielns lnies nlies lines ilnes niles inles enils neils einls ienls niels inels lensi elnsi lnesi nlesi enlsi nelsi lesni elsni lseni sleni eslni selni lnsei nlsei lsnei slnei nslei snlei ensli nesli esnli senli nseli sneli leisn elisn liesn ilesn eilsn ielsn lesin elsin lsein slein eslin selin lisen ilsen lsien slien islen silen eisln iesln esiln seiln iseln sieln lnise nlise linse ilnse nilse inlse lnsie nlsie lsnie slnie nslie snlie lisne ilsne lsine sline islne silne nisle insle nsile snile isnle sinle enisl neisl einsl iensl niesl inesl ensil nesil esnil senil nseil sneil eisnl iesnl esinl seinl isenl sienl nisel insel nsiel sniel isnel sinel
Note: these 'words' (valid or invalid) are all the permutations of the word lenis. These words are obtained by scrambling the letters in lenis.