rihsh irhsh rhish hrish ihrsh hirsh rishh irshh rsihh srihh isrhh sirhh rhsih hrsih rshih srhih hsrih shrih ihsrh hisrh ishrh sihrh hsirh shirh rihhs irhhs rhihs hrihs ihrhs hirhs rihhs irhhs rhihs hrihs ihrhs hirhs rhhis hrhis rhhis hrhis hhris hhris ihhrs hihrs ihhrs hihrs hhirs hhirs rishh irshh rsihh srihh isrhh sirhh rihsh irhsh rhish hrish ihrsh hirsh rshih srhih rhsih hrsih shrih hsrih ishrh sihrh ihsrh hisrh shirh hsirh rhshi hrshi rshhi srhhi hsrhi shrhi rhhsi hrhsi rhhsi hrhsi hhrsi hhrsi rshhi srhhi rhshi hrshi shrhi hsrhi hshri shhri hhsri hhsri shhri hshri ihshr hishr ishhr sihhr hsihr shihr ihhsr hihsr ihhsr hihsr hhisr hhisr ishhr sihhr ihshr hishr shihr hsihr hshir shhir hhsir hhsir shhir hshir
Note: these 'words' (valid or invalid) are all the permutations of the word rihsh. These words are obtained by scrambling the letters in rihsh.