uflix fulix ulfix lufix fluix lfuix ufilx fuilx uiflx iuflx fiulx ifulx ulifx luifx uilfx iulfx liufx ilufx fliux lfiux filux iflux lifux ilfux uflxi fulxi ulfxi lufxi fluxi lfuxi ufxli fuxli uxfli xufli fxuli xfuli ulxfi luxfi uxlfi xulfi lxufi xlufi flxui lfxui fxlui xflui lxfui xlfui ufixl fuixl uifxl iufxl fiuxl ifuxl ufxil fuxil uxfil xufil fxuil xfuil uixfl iuxfl uxifl xuifl ixufl xiufl fixul ifxul fxiul xfiul ixful xiful ulixf luixf uilxf iulxf liuxf iluxf ulxif luxif uxlif xulif lxuif xluif uixlf iuxlf uxilf xuilf ixulf xiulf lixuf ilxuf lxiuf xliuf ixluf xiluf flixu lfixu filxu iflxu lifxu ilfxu flxiu lfxiu fxliu xfliu lxfiu xlfiu fixlu ifxlu fxilu xfilu ixflu xiflu lixfu ilxfu lxifu xlifu ixlfu xilfu
Note: these 'words' (valid or invalid) are all the permutations of the word uflix. These words are obtained by scrambling the letters in uflix.