swish wsish siwsh iswsh wissh iwssh swsih wssih sswih sswih wssih swsih siswh isswh ssiwh ssiwh isswh siswh wissh iwssh wsish swish iswsh siwsh swihs wsihs siwhs iswhs wishs iwshs swhis wshis shwis hswis whsis hwsis sihws ishws shiws hsiws ihsws hisws wihss iwhss whiss hwiss ihwss hiwss swshi wsshi sswhi sswhi wsshi swshi swhsi wshsi shwsi hswsi whssi hwssi sshwi sshwi shswi hsswi shswi hsswi wshsi swhsi whssi hwssi shwsi hswsi sishw isshw ssihw ssihw isshw sishw sihsw ishsw shisw hsisw ihssw hissw sshiw sshiw shsiw hssiw shsiw hssiw ishsw sihsw ihssw hissw shisw hsisw wishs iwshs wsihs swihs iswhs siwhs wihss iwhss whiss hwiss ihwss hiwss wshis swhis whsis hwsis shwis hswis ishws sihws ihsws hisws shiws hsiws
Note: these 'words' (valid or invalid) are all the permutations of the word swish. These words are obtained by scrambling the letters in swish.