fural ufral frual rfual urfal rufal fuarl ufarl faurl afurl uafrl aufrl fraul rfaul farul afrul raful arful urafl ruafl uarfl aurfl raufl arufl furla ufrla frula rfula urfla rufla fulra uflra flura lfura ulfra lufra frlua rflua flrua lfrua rlfua lrfua urlfa rulfa ulrfa lurfa rlufa lrufa fualr ufalr faulr afulr uaflr auflr fular uflar fluar lfuar ulfar lufar falur aflur flaur lfaur alfur lafur ualfr aulfr ulafr luafr alufr laufr fralu rfalu farlu afrlu raflu arflu frlau rflau flrau lfrau rlfau lrfau falru aflru flaru lfaru alfru lafru ralfu arlfu rlafu lrafu alrfu larfu uralf rualf uarlf aurlf raulf arulf urlaf rulaf ulraf luraf rluaf lruaf ualrf aulrf ularf luarf alurf laurf raluf arluf rlauf lrauf alruf laruf
Note: these 'words' (valid or invalid) are all the permutations of the word fural. These words are obtained by scrambling the letters in fural.