welch ewlch wlech lwech elwch lewch weclh ewclh wcelh cwelh ecwlh cewlh wlceh lwceh wcleh cwleh lcweh clweh elcwh lecwh eclwh celwh lcewh clewh welhc ewlhc wlehc lwehc elwhc lewhc wehlc ewhlc whelc hwelc ehwlc hewlc wlhec lwhec whlec hwlec lhwec hlwec elhwc lehwc ehlwc helwc lhewc hlewc wechl ewchl wcehl cwehl ecwhl cewhl wehcl ewhcl whecl hwecl ehwcl hewcl wchel cwhel whcel hwcel chwel hcwel echwl cehwl ehcwl hecwl chewl hcewl wlche lwche wclhe cwlhe lcwhe clwhe wlhce lwhce whlce hwlce lhwce hlwce wchle cwhle whcle hwcle chwle hcwle lchwe clhwe lhcwe hlcwe chlwe hclwe elchw lechw eclhw celhw lcehw clehw elhcw lehcw ehlcw helcw lhecw hlecw echlw cehlw ehclw heclw chelw hcelw lchew clhew lhcew hlcew chlew hclew
Note: these 'words' (valid or invalid) are all the permutations of the word welch. These words are obtained by scrambling the letters in welch.