alifs laifs ailfs ialfs liafs ilafs alfis lafis aflis falis lfais flais aifls iafls afils fails ifals fials lifas ilfas lfias flias iflas filas alisf laisf ailsf ialsf liasf ilasf alsif lasif aslif salif lsaif slaif aislf iaslf asilf sailf isalf sialf lisaf ilsaf lsiaf sliaf islaf silaf alfsi lafsi aflsi falsi lfasi flasi alsfi lasfi aslfi salfi lsafi slafi afsli fasli asfli safli fsali sfali lfsai flsai lsfai slfai fslai sflai aifsl iafsl afisl faisl ifasl fiasl aisfl iasfl asifl saifl isafl siafl afsil fasil asfil safil fsail sfail ifsal fisal isfal sifal fsial sfial lifsa ilfsa lfisa flisa iflsa filsa lisfa ilsfa lsifa slifa islfa silfa lfsia flsia lsfia slfia fslia sflia ifsla fisla isfla sifla fsila sfila
Note: these 'words' (valid or invalid) are all the permutations of the word alifs. These words are obtained by scrambling the letters in alifs.