flire lfire filre iflre lifre ilfre flrie lfrie frlie rflie lrfie rlfie firle ifrle frile rfile irfle rifle lirfe ilrfe lrife rlife irlfe rilfe flier lfier filer ifler lifer ilfer fleir lfeir felir eflir lefir elfir fielr ifelr feilr efilr ieflr eiflr liefr ilefr leifr elifr ielfr eilfr flrei lfrei frlei rflei lrfei rlfei fleri lferi felri eflri lefri elfri freli rfeli ferli efrli refli erfli lrefi rlefi lerfi elrfi relfi erlfi firel ifrel friel rfiel irfel rifel fierl iferl feirl efirl iefrl eifrl freil rfeil feril efril refil erfil irefl riefl ierfl eirfl reifl erifl liref ilref lrief rlief irlef rilef lierf ilerf leirf elirf ielrf eilrf lreif rleif lerif elrif relif erlif irelf rielf ierlf eirlf reilf erilf
Note: these 'words' (valid or invalid) are all the permutations of the word flire. These words are obtained by scrambling the letters in flire.