celli eclli cleli lceli elcli lecli celli eclli cleli lceli elcli lecli cllei lclei cllei lclei llcei llcei ellci lelci ellci lelci lleci lleci celil eclil cleil lceil elcil lecil ceill ecill ciell icell eicll iecll cliel lciel cilel iclel licel ilcel elicl leicl eilcl ielcl liecl ilecl celil eclil cleil lceil elcil lecil ceill ecill ciell icell eicll iecll cliel lciel cilel iclel licel ilcel elicl leicl eilcl ielcl liecl ilecl cllie lclie cllie lclie llcie llcie clile lcile cille iclle licle ilcle clile lcile cille iclle licle ilcle llice llice lilce illce lilce illce ellic lelic ellic lelic lleic lleic elilc leilc eillc iellc lielc ilelc elilc leilc eillc iellc lielc ilelc lliec lliec lilec illec lilec illec
Note: these 'words' (valid or invalid) are all the permutations of the word celli. These words are obtained by scrambling the letters in celli.