mjbl jmbl mbjl bmjl jbml bjml mjlb jmlb mljb lmjb jlmb ljmb mblj bmlj mlbj lmbj blmj lbmj jblm bjlm jlbm ljbm bljm lbjm
Note: these 'words' (valid or invalid) are all the permutations of the word mjbl. These words are obtained by scrambling the letters in mjbl.