colal oclal cloal lcoal olcal local coall ocall caoll acoll oacll aocll claol lcaol calol aclol lacol alcol olacl loacl oalcl aolcl laocl alocl colla oclla clola lcola olcla locla colla oclla clola lcola olcla locla clloa lcloa clloa lcloa llcoa llcoa ollca lolca ollca lolca lloca lloca coall ocall caoll acoll oacll aocll colal oclal cloal lcoal olcal local calol aclol claol lcaol alcol lacol oalcl aolcl olacl loacl alocl laocl clalo lcalo callo acllo laclo alclo cllao lclao cllao lclao llcao llcao callo acllo clalo lcalo alclo laclo lalco allco llaco llaco allco lalco olalc loalc oallc aollc laolc alolc ollac lolac ollac lolac lloac lloac oallc aollc olalc loalc alolc laolc laloc alloc llaoc llaoc alloc laloc
Note: these 'words' (valid or invalid) are all the permutations of the word colal. These words are obtained by scrambling the letters in colal.