sitoh istoh stioh tsioh itsoh tisoh sioth isoth soith osith iosth oisth stoih tsoih sotih ostih tosih otsih itosh tiosh iotsh oitsh toish otish sitho istho stiho tsiho itsho tisho sihto ishto shito hsito ihsto histo sthio tshio shtio hstio thsio htsio ithso tihso ihtso hitso thiso htiso sioht isoht soiht osiht iosht oisht sihot ishot shiot hsiot ihsot hisot sohit oshit shoit hsoit ohsit hosit iohst oihst ihost hiost ohist hoist stohi tsohi sothi osthi toshi otshi sthoi tshoi shtoi hstoi thsoi htsoi sohti oshti shoti hsoti ohsti hosti tohsi othsi thosi htosi ohtsi hotsi itohs tiohs ioths oiths toihs otihs ithos tihos ihtos hitos thios htios iohts oihts ihots hiots ohits hoits tohis othis thois htois ohtis hotis
Note: these 'words' (valid or invalid) are all the permutations of the word sitoh. These words are obtained by scrambling the letters in sitoh.