kotch oktch ktoch tkoch otkch tokch kocth okcth kcoth ckoth ockth cokth ktcoh tkcoh kctoh cktoh tckoh ctkoh otckh tockh octkh cotkh tcokh ctokh kothc okthc ktohc tkohc otkhc tokhc kohtc okhtc khotc hkotc ohktc hoktc kthoc tkhoc khtoc hktoc thkoc htkoc othkc tohkc ohtkc hotkc thokc htokc kocht okcht kcoht ckoht ockht cokht kohct okhct khoct hkoct ohkct hokct kchot ckhot khcot hkcot chkot hckot ochkt cohkt ohckt hockt chokt hcokt ktcho tkcho kctho cktho tckho ctkho kthco tkhco khtco hktco thkco htkco kchto ckhto khcto hkcto chkto hckto tchko cthko thcko htcko chtko hctko otchk tochk octhk cothk tcohk ctohk othck tohck ohtck hotck thock htock ochtk cohtk ohctk hoctk chotk hcotk tchok cthok thcok htcok chtok hctok
Note: these 'words' (valid or invalid) are all the permutations of the word kotch. These words are obtained by scrambling the letters in kotch.