wheli hweli wehli ewhli hewli ehwli whlei hwlei wlhei lwhei hlwei lhwei welhi ewlhi wlehi lwehi elwhi lewhi helwi ehlwi hlewi lhewi elhwi lehwi wheil hweil wehil ewhil hewil ehwil whiel hwiel wihel iwhel hiwel ihwel weihl ewihl wiehl iwehl eiwhl iewhl heiwl ehiwl hiewl ihewl eihwl iehwl whlie hwlie wlhie lwhie hlwie lhwie while hwile wihle iwhle hiwle ihwle wlihe lwihe wilhe iwlhe liwhe ilwhe hliwe lhiwe hilwe ihlwe lihwe ilhwe welih ewlih wleih lweih elwih lewih weilh ewilh wielh iwelh eiwlh iewlh wlieh lwieh wileh iwleh liweh ilweh eliwh leiwh eilwh ielwh liewh ilewh heliw ehliw hleiw lheiw elhiw lehiw heilw ehilw hielw ihelw eihlw iehlw hliew lhiew hilew ihlew lihew ilhew elihw leihw eilhw ielhw liehw ilehw
Note: these 'words' (valid or invalid) are all the permutations of the word wheli. These words are obtained by scrambling the letters in wheli.