afoot faoot aofot oafot foaot ofaot afoot faoot aofot oafot foaot ofaot aooft oaoft aooft oaoft ooaft ooaft fooat ofoat fooat ofoat oofat oofat afoto faoto aofto oafto foato ofato aftoo fatoo atfoo tafoo ftaoo tfaoo aotfo oatfo atofo taofo otafo toafo fotao oftao ftoao tfoao otfao tofao afoto faoto aofto oafto foato ofato aftoo fatoo atfoo tafoo ftaoo tfaoo aotfo oatfo atofo taofo otafo toafo fotao oftao ftoao tfoao otfao tofao aootf oaotf aootf oaotf ooatf ooatf aotof oatof atoof taoof otaof toaof aotof oatof atoof taoof otaof toaof ootaf ootaf otoaf tooaf otoaf tooaf foota ofota foota ofota oofta oofta fotoa oftoa ftooa tfooa otfoa tofoa fotoa oftoa ftooa tfooa otfoa tofoa ootfa ootfa otofa toofa otofa toofa
Note: these 'words' (valid or invalid) are all the permutations of the word afoot. These words are obtained by scrambling the letters in afoot.