euchs uechs ecuhs ceuhs ucehs cuehs euhcs uehcs ehucs heucs uhecs huecs echus cehus ehcus hecus cheus hceus uches cuhes uhces huces chues hcues eucsh uecsh ecush ceush ucesh cuesh eusch uesch esuch seuch usech suech ecsuh cesuh escuh secuh cseuh sceuh ucseh cuseh usceh suceh csueh scueh euhsc uehsc ehusc heusc uhesc huesc eushc ueshc esuhc seuhc usehc suehc ehsuc hesuc eshuc sehuc hseuc sheuc uhsec husec ushec suhec hsuec shuec echsu cehsu ehcsu hecsu chesu hcesu ecshu ceshu eschu sechu csehu scehu ehscu hescu eshcu sehcu hsecu shecu chseu hcseu csheu scheu hsceu shceu uchse cuhse uhcse hucse chuse hcuse ucshe cushe usche suche csuhe scuhe uhsce husce ushce suhce hsuce shuce chsue hcsue cshue schue hscue shcue
Note: these 'words' (valid or invalid) are all the permutations of the word euchs. These words are obtained by scrambling the letters in euchs.