wests ewsts wsets swets eswts sewts wetss ewtss wtess twess etwss tewss wstes swtes wtses twses stwes tswes estws setws etsws tesws stews tsews wesst ewsst wsest swest eswst sewst wesst ewsst wsest swest eswst sewst wsset swset wsset swset sswet sswet esswt seswt esswt seswt ssewt ssewt wetss ewtss wtess twess etwss tewss wests ewsts wsets swets eswts sewts wtses twses wstes swtes tswes stwes etsws tesws estws setws tsews stews wstse swtse wtsse twsse stwse tswse wsste swste wsste swste sswte sswte wtsse twsse wstse swtse tswse stwse stswe tsswe sstwe sstwe tsswe stswe estsw setsw etssw tessw stesw tsesw esstw sestw esstw sestw ssetw ssetw etssw tessw estsw setsw tsesw stesw stsew tssew sstew sstew tssew stsew
Note: these 'words' (valid or invalid) are all the permutations of the word wests. These words are obtained by scrambling the letters in wests.