a-a a-b aaa aab aad aah aam ab- aba abb abd abh abm ad- ada adb add adh adm aha ahb ahd ahh ahm ama amb amd amh amm baa bab bad bah bam bba bbb bbd bbh bbm bda bdb bdd bdh bdm bha bhb bhd bhh bhm bma bmb bmd bmh bmm daa dab dad dah dam dba dbb dbd dbh dbm dda ddb ddd ddh ddm dh- dha dhb dhd dhh dhm dma dmb dmd dmh dmm haa hab had hah ham hba hbb hbd hbh hbm hda hdb hdd hdh hdm hha hhb hhd hhh hhm hma hmb hmd hmh hmm maa mab mad mah mam mba mbb mbd mbh mbm mda mdb mdd mdh mdm mha mhd mhh mhm mma mmb mmd mmh mmm