leuch eluch luech ulech eulch uelch lecuh elcuh lceuh cleuh ecluh celuh luceh ulceh lcueh clueh ucleh culeh euclh ueclh eculh ceulh ucelh cuelh leuhc eluhc luehc ulehc eulhc uelhc lehuc elhuc lheuc hleuc ehluc heluc luhec ulhec lhuec hluec uhlec hulec euhlc uehlc ehulc heulc uhelc huelc lechu elchu lcehu clehu eclhu celhu lehcu elhcu lhecu hlecu ehlcu helcu lcheu clheu lhceu hlceu chleu hcleu echlu cehlu ehclu heclu chelu hcelu luche ulche lcuhe cluhe uclhe culhe luhce ulhce lhuce hluce uhlce hulce lchue clhue lhcue hlcue chlue hclue uchle cuhle uhcle hucle chule hcule euchl uechl ecuhl ceuhl ucehl cuehl euhcl uehcl ehucl heucl uhecl huecl echul cehul ehcul hecul cheul hceul uchel cuhel uhcel hucel chuel hcuel
Note: these 'words' (valid or invalid) are all the permutations of the word leuch. These words are obtained by scrambling the letters in leuch.