raker arker rkaer kraer akrer karer raekr arekr reakr erakr aerkr earkr rkear krear rekar erkar kerar ekrar akerr kaerr aekrr eakrr kearr ekarr rakre arkre rkare krare akrre karre rarke arrke rrake rrake arrke rarke rkrae krrae rrkae rrkae krrae rkrae akrre karre arkre rakre krare rkare raerk arerk reark erark aerrk earrk rarek arrek rraek rraek arrek rarek rerak errak rreak rreak errak rerak aerrk earrk arerk raerk erark reark rkera krera rekra erkra kerra ekrra rkrea krrea rrkea rrkea krrea rkrea rerka errka rreka rreka errka rerka kerra ekrra krera rkera erkra rekra akerr kaerr aekrr eakrr kearr ekarr akrer karer arker raker kraer rkaer aerkr earkr arekr raekr erakr reakr kerar ekrar krear rkear erkar rekar
Note: these 'words' (valid or invalid) are all the permutations of the word raker. These words are obtained by scrambling the letters in raker.