cooca ococa cooca ococa oocca oocca cocoa occoa ccooa ccooa occoa cocoa cocoa occoa ccooa ccooa occoa cocoa oocca oocca ococa cooca ococa cooca cooac ocoac cooac ocoac oocac oocac coaoc ocaoc caooc acooc oacoc aococ coaoc ocaoc caooc acooc oacoc aococ ooacc ooacc oaocc aoocc oaocc aoocc cocao occao ccoao ccoao occao cocao coaco ocaco caoco acoco oacco aocco ccaoo ccaoo cacoo accoo cacoo accoo ocaco coaco oacco aocco caoco acoco cocao occao ccoao ccoao occao cocao coaco ocaco caoco acoco oacco aocco ccaoo ccaoo cacoo accoo cacoo accoo ocaco coaco oacco aocco caoco acoco oocac oocac ocoac cooac ocoac cooac ooacc ooacc oaocc aoocc oaocc aoocc ocaoc coaoc oacoc aococ caooc acooc ocaoc coaoc oacoc aococ caooc acooc
Note: these 'words' (valid or invalid) are all the permutations of the word cooca. These words are obtained by scrambling the letters in cooca.