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