flabs lfabs falbs aflbs lafbs alfbs flbas lfbas fblas bflas lbfas blfas fabls afbls fbals bfals abfls bafls labfs albfs lbafs blafs ablfs balfs flasb lfasb falsb aflsb lafsb alfsb flsab lfsab fslab sflab lsfab slfab faslb afslb fsalb sfalb asflb saflb lasfb alsfb lsafb slafb aslfb salfb flbsa lfbsa fblsa bflsa lbfsa blfsa flsba lfsba fslba sflba lsfba slfba fbsla bfsla fsbla sfbla bsfla sbfla lbsfa blsfa lsbfa slbfa bslfa sblfa fabsl afbsl fbasl bfasl abfsl bafsl fasbl afsbl fsabl sfabl asfbl safbl fbsal bfsal fsbal sfbal bsfal sbfal absfl basfl asbfl sabfl bsafl sbafl labsf albsf lbasf blasf ablsf balsf lasbf alsbf lsabf slabf aslbf salbf lbsaf blsaf lsbaf slbaf bslaf sblaf abslf baslf asblf sablf bsalf sbalf
Note: these 'words' (valid or invalid) are all the permutations of the word flabs. These words are obtained by scrambling the letters in flabs.