a-a a-b aaa aab aah aam aan aar ab- aba abb abh abm abn abr aha ahb ahh ahm ahn ahr ama amb amh amm amn amr an- ana anb anh anm ann anr ar- ara arb arh arm arn arr baa bab bah bam ban bar bba bbb bbh bbm bbn bbr bha bhb bhh bhm bhr bma bmb bmh bmm bmn bmr bna bnb bnn bnr bra brb brh brm brn brr haa hab hah ham han har hba hbb hbh hbm hbn hbr hha hhb hhh hhm hhn hhr hma hmb hmh hmm hmr hna hnb hnh hnn hr- hra hrb hrh hrm hrn hrr m-r maa mab mah mam man mar mba mbb mbh mbm mbr mha mhh mhm mhn mhr mma mmb mmh mmm mmn mmr mna mnb mnm mnn mnr mra mrb mrh mrm mrn mrr naa nab nah nam nan nar nba nbb nbm nbn nbr nha nhb nhh nhm nhn nhr nma nmb nmh nmm nmn nmr nna nnb nnh nnm nnn nra nrb nrm nrn nrr ra- raa rab rah ram ran rar rba rbb rbh rbm rbn rbr rh- rha rhb rhh rhm rhn rhr rma rmb rmh rmm rmn rmr rna rnb rnh rnm rnn rnr rra rrb rrh rrm rrn rrr