shish hsish sihsh ishsh hissh ihssh shsih hssih sshih sshih hssih shsih sishh isshh ssihh ssihh isshh sishh hissh ihssh hsish shish ishsh sihsh shihs hsihs sihhs ishhs hishs ihshs shhis hshis shhis hshis hhsis hhsis sihhs ishhs shihs hsihs ihshs hishs hihss ihhss hhiss hhiss ihhss hihss shshi hsshi sshhi sshhi hsshi shshi shhsi hshsi shhsi hshsi hhssi hhssi sshhi sshhi shshi hsshi shshi hsshi hshsi shhsi hhssi hhssi shhsi hshsi sishh isshh ssihh ssihh isshh sishh sihsh ishsh shish hsish ihssh hissh sshih sshih shsih hssih shsih hssih ishsh sihsh ihssh hissh shish hsish hishs ihshs hsihs shihs ishhs sihhs hihss ihhss hhiss hhiss ihhss hihss hshis shhis hhsis hhsis shhis hshis ishhs sihhs ihshs hishs shihs hsihs
Note: these 'words' (valid or invalid) are all the permutations of the word shish. These words are obtained by scrambling the letters in shish.