lears elars laers alers ealrs aelrs leras elras lreas rleas erlas relas lares alres lraes rlaes arles rales earls aerls erals reals arels raels leasr elasr laesr alesr ealsr aelsr lesar elsar lsear slear eslar selar laser alser lsaer slaer asler saler easlr aeslr esalr sealr aselr saelr lersa elrsa lresa rlesa erlsa relsa lesra elsra lsera slera eslra selra lrsea rlsea lsrea slrea rslea srlea ersla resla esrla serla rsela srela larse alrse lrase rlase arlse ralse lasre alsre lsare slare aslre salre lrsae rlsae lsrae slrae rslae srlae arsle rasle asrle sarle rsale srale earsl aersl erasl reasl aresl raesl easrl aesrl esarl searl aserl saerl ersal resal esral seral rseal sreal arsel rasel asrel sarel rsael srael
Note: these 'words' (valid or invalid) are all the permutations of the word lears. These words are obtained by scrambling the letters in lears.