ehars hears eahrs aehrs haers ahers ehras heras erhas rehas hreas rheas earhs aerhs erahs reahs arehs raehs hares ahres hraes rhaes arhes rahes ehasr heasr eahsr aehsr haesr ahesr ehsar hesar eshar sehar hsear shear eashr aeshr esahr seahr asehr saehr haser ahser hsaer shaer asher saher ehrsa hersa erhsa rehsa hresa rhesa ehsra hesra eshra sehra hsera shera ersha resha esrha serha rseha sreha hrsea rhsea hsrea shrea rshea srhea earsh aersh erash reash aresh raesh easrh aesrh esarh searh aserh saerh ersah resah esrah serah rseah sreah arseh raseh asreh sareh rsaeh sraeh harse ahrse hrase rhase arhse rahse hasre ahsre hsare share ashre sahre hrsae rhsae hsrae shrae rshae srhae arshe rashe asrhe sarhe rsahe srahe
Note: these 'words' (valid or invalid) are all the permutations of the word ehars. These words are obtained by scrambling the letters in ehars.