fiats ifats faits afits iafts aifts fitas iftas ftias tfias itfas tifas fatis aftis ftais tfais atfis tafis iatfs aitfs itafs tiafs atifs taifs fiast ifast faist afist iafst aifst fisat ifsat fsiat sfiat isfat sifat fasit afsit fsait sfait asfit safit iasft aisft isaft siaft asift saift fitsa iftsa ftisa tfisa itfsa tifsa fista ifsta fsita sfita isfta sifta ftsia tfsia fstia sftia tsfia stfia itsfa tisfa istfa sitfa tsifa stifa fatsi aftsi ftasi tfasi atfsi tafsi fasti afsti fsati sfati asfti safti ftsai tfsai fstai sftai tsfai stfai atsfi tasfi astfi satfi tsafi stafi iatsf aitsf itasf tiasf atisf taisf iastf aistf isatf siatf asitf saitf itsaf tisaf istaf sitaf tsiaf stiaf atsif tasif astif satif tsaif staif
Note: these 'words' (valid or invalid) are all the permutations of the word fiats. These words are obtained by scrambling the letters in fiats.