a-a a-b aaa aab aad aah aam aar ab- aba abb abd abh abm abr ad- ada adb add adh adm adr aha ahb ahd ahh ahm ahr ama amb amd amh amm amr ar- ara arb ard arh arm arr baa bab bad bah bam bar bba bbb bbd bbh bbm bbr bda bdb bdd bdh bdm bdr bha bhb bhd bhh bhm bhr bma bmb bmd bmh bmm bmr bra brb brd brh brm brr daa dab dad dah dam dar dba dbb dbd dbh dbm dbr dda ddb ddd ddh ddm ddr dh- dha dhb dhd dhh dhm dhr dma dmb dmd dmh dmm dmr dra drb drd drm drr haa hab had hah ham har hba hbb hbd hbh hbm hbr hda hdb hdd hdh hdm hdr hha hhb hhd hhh hhm hhr hma hmb hmd hmh hmm hmr hr- hra hrb hrd hrh hrm hrr m-r maa mab mad mah mam mar mba mbb mbd mbh mbm mbr mda mdb mdd mdh mdm mdr mha mhd mhh mhm mhr mma mmb mmd mmh mmm mmr mra mrb mrd mrh mrm mrr ra- raa rab rad rah ram rar rba rbb rbd rbh rbm rbr rda rdb rdd rdh rdm rdr rh- rha rhb rhd rhh rhm rhr rma rmb rmd rmh rmm rmr rra rrb rrd rrh rrm rrr