cotta octta ctota tcota otcta tocta cotta octta ctota tcota otcta tocta cttoa tctoa cttoa tctoa ttcoa ttcoa ottca totca ottca totca ttoca ttoca cotat octat ctoat tcoat otcat tocat coatt ocatt caott acott oactt aoctt ctaot tcaot catot actot tacot atcot otact toact oatct aotct taoct atoct cotat octat ctoat tcoat otcat tocat coatt ocatt caott acott oactt aoctt ctaot tcaot catot actot tacot atcot otact toact oatct aotct taoct atoct cttao tctao cttao tctao ttcao ttcao ctato tcato catto actto tacto atcto ctato tcato catto actto tacto atcto ttaco ttaco tatco attco tatco attco ottac totac ottac totac ttoac ttoac otatc toatc oattc aottc taotc atotc otatc toatc oattc aottc taotc atotc ttaoc ttaoc tatoc attoc tatoc attoc
Note: these 'words' (valid or invalid) are all the permutations of the word cotta. These words are obtained by scrambling the letters in cotta.