foots ofots foots ofots oofts oofts fotos oftos ftoos tfoos otfos tofos fotos oftos ftoos tfoos otfos tofos ootfs ootfs otofs toofs otofs toofs foost ofost foost ofost oofst oofst fosot ofsot fsoot sfoot osfot sofot fosot ofsot fsoot sfoot osfot sofot oosft oosft osoft sooft osoft sooft fotso oftso ftoso tfoso otfso tofso fosto ofsto fsoto sfoto osfto softo ftsoo tfsoo fstoo sftoo tsfoo stfoo otsfo tosfo ostfo sotfo tsofo stofo fotso oftso ftoso tfoso otfso tofso fosto ofsto fsoto sfoto osfto softo ftsoo tfsoo fstoo sftoo tsfoo stfoo otsfo tosfo ostfo sotfo tsofo stofo ootsf ootsf otosf toosf otosf toosf oostf oostf osotf sootf osotf sootf otsof tosof ostof sotof tsoof stoof otsof tosof ostof sotof tsoof stoof
Note: these 'words' (valid or invalid) are all the permutations of the word foots. These words are obtained by scrambling the letters in foots.