elchi lechi eclhi celhi lcehi clehi elhci lehci ehlci helci lheci hleci echli cehli ehcli hecli cheli hceli lchei clhei lhcei hlcei chlei hclei elcih lecih eclih celih lceih cleih elich leich eilch ielch liech ilech ecilh ceilh eiclh ieclh cielh icelh lcieh clieh liceh ilceh cileh icleh elhic lehic ehlic helic lheic hleic elihc leihc eilhc ielhc liehc ilehc ehilc heilc eihlc iehlc hielc ihelc lhiec hliec lihec ilhec hilec ihlec echil cehil ehcil hecil cheil hceil ecihl ceihl eichl iechl ciehl icehl ehicl heicl eihcl iehcl hiecl ihecl chiel hciel cihel ichel hicel ihcel lchie clhie lhcie hlcie chlie hclie lcihe clihe liche ilche cilhe iclhe lhice hlice lihce ilhce hilce ihlce chile hcile cihle ichle hicle ihcle
Note: these 'words' (valid or invalid) are all the permutations of the word elchi. These words are obtained by scrambling the letters in elchi.