crake rcake carke acrke racke arcke crkae rckae ckrae kcrae rkcae krcae cakre ackre ckare kcare akcre kacre rakce arkce rkace krace akrce karce craek rcaek carek acrek racek arcek creak rceak cerak ecrak recak ercak caerk acerk ceark ecark aecrk eacrk raeck areck reack erack aerck earck crkea rckea ckrea kcrea rkcea krcea creka rceka cerka ecrka recka ercka ckera kcera cekra eckra kecra ekcra rkeca kreca rekca erkca kerca ekrca caker acker ckaer kcaer akcer kacer caekr acekr ceakr ecakr aeckr eackr ckear kcear cekar eckar kecar ekcar akecr kaecr aekcr eakcr keacr ekacr rakec arkec rkaec kraec akrec karec raekc arekc reakc erakc aerkc earkc rkeac kreac rekac erkac kerac ekrac akerc kaerc aekrc eakrc kearc ekarc
Note: these 'words' (valid or invalid) are all the permutations of the word crake. These words are obtained by scrambling the letters in crake.