ucihs cuihs uichs iuchs ciuhs icuhs uchis cuhis uhcis hucis chuis hcuis uihcs iuhcs uhics huics ihucs hiucs cihus ichus chius hcius ihcus hicus ucish cuish uicsh iucsh ciush icush ucsih cusih uscih sucih csuih scuih uisch iusch usich suich isuch siuch cisuh icsuh csiuh sciuh iscuh sicuh uchsi cuhsi uhcsi hucsi chusi hcusi ucshi cushi uschi suchi csuhi scuhi uhsci husci ushci suhci hsuci shuci chsui hcsui cshui schui hscui shcui uihsc iuhsc uhisc huisc ihusc hiusc uishc iushc usihc suihc isuhc siuhc uhsic husic ushic suhic hsuic shuic ihsuc hisuc ishuc sihuc hsiuc shiuc cihsu ichsu chisu hcisu ihcsu hicsu cishu icshu csihu scihu ischu sichu chsiu hcsiu cshiu schiu hsciu shciu ihscu hiscu ishcu sihcu hsicu shicu
Note: these 'words' (valid or invalid) are all the permutations of the word ucihs. These words are obtained by scrambling the letters in ucihs.