cobza ocbza cboza bcoza obcza bocza cozba oczba czoba zcoba ozcba zocba cbzoa bczoa czboa zcboa bzcoa zbcoa obzca bozca ozbca zobca bzoca zboca cobaz ocbaz cboaz bcoaz obcaz bocaz coabz ocabz caobz acobz oacbz aocbz cbaoz bcaoz caboz acboz bacoz abcoz obacz boacz oabcz aobcz baocz abocz cozab oczab czoab zcoab ozcab zocab coazb ocazb caozb acozb oaczb aoczb czaob zcaob cazob aczob zacob azcob ozacb zoacb oazcb aozcb zaocb azocb cbzao bczao czbao zcbao bzcao zbcao cbazo bcazo cabzo acbzo baczo abczo czabo zcabo cazbo aczbo zacbo azcbo bzaco zbaco bazco abzco zabco azbco obzac bozac ozbac zobac bzoac zboac obazc boazc oabzc aobzc baozc abozc ozabc zoabc oazbc aozbc zaobc azobc bzaoc zbaoc bazoc abzoc zaboc azboc
Note: these 'words' (valid or invalid) are all the permutations of the word cobza. These words are obtained by scrambling the letters in cobza.