ffbla ffbla fbfla bffla fbfla bffla fflba fflba flfba lffba flfba lffba fblfa bflfa flbfa lfbfa blffa lbffa fblfa bflfa flbfa lfbfa blffa lbffa ffbal ffbal fbfal bffal fbfal bffal ffabl ffabl fafbl affbl fafbl affbl fbafl bfafl fabfl afbfl baffl abffl fbafl bfafl fabfl afbfl baffl abffl fflab fflab flfab lffab flfab lffab ffalb ffalb faflb afflb faflb afflb flafb lfafb falfb aflfb laffb alffb flafb lfafb falfb aflfb laffb alffb fblaf bflaf flbaf lfbaf blfaf lbfaf fbalf bfalf fablf afblf baflf abflf flabf lfabf falbf aflbf lafbf alfbf blaff lbaff balff ablff labff albff fblaf bflaf flbaf lfbaf blfaf lbfaf fbalf bfalf fablf afblf baflf abflf flabf lfabf falbf aflbf lafbf alfbf blaff lbaff balff ablff labff albff
Note: these 'words' (valid or invalid) are all the permutations of the word ffbla. These words are obtained by scrambling the letters in ffbla.