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