a-a a-b aaa aab aad aae aah aam aao ab- aba abb abd abe abh abm abo ad- ada adb add ade adh adm ado aea aeb aed aee aeh aem aeo aha ahb ahd ahe ahh ahm aho ama amb amd ame amh amm amo aoa aob aod aoe aoh aom aoo baa bab bad bae bah bam bao bba bbb bbd bbe bbh bbm bbo bda bdb bdd bde bdh bdm bdo be- bea beb bed bee beh bem beo bha bhb bhd bhe bhh bhm bho bma bmb bmd bme bmh bmm bmo boa bob bod boe boh bom boo daa dab dad dae dah dam dao dba dbb dbd dbe dbh dbm dbo dda ddb ddd dde ddh ddm ddo de- dea deb ded dee deh dem deo dh- dha dhb dhd dhe dhh dhm dho dma dmb dmd dme dmh dmm dmo doa dob dod doe doh dom doo eaa eab ead eae eah eam eao eba ebb ebd ebe ebh ebm ebo ed- eda edb edd ede edh edm edo eea eeb eed eee eem eeo eha ehb ehd ehe ehh ehm eho em- ema emb emd eme emh emm emo eo- eoa eob eod eoe eoh eom eoo haa hab had hae hah ham hao hba hbb hbd hbe hbh hbm hbo hda hdb hdd hde hdh hdm hdo he- hea heb hed hee heh hem heo hha hhb hhd hhe hhh hhm hho hma hmb hmd hme hmh hmm hmo hoa hob hod hoe hoh hom hoo m-o maa mab mad mae mah mam mao mba mbb mbd mbe mbh mbm mbo mda mdb mdd mde mdh mdm mdo mea meb med mee meh mem meo mha mhd mhh mhm mho mma mmb mmd mme mmh mmm mmo moa mob mod moe moh mom moo oaa oab oad oae oah oam oao ob- oba obb obd obe obh obm obo oda odb odd ode odh odm odo oea oeb oed oee oeh oem oeo oha ohd ohe ohh ohm oho om- oma omb omd ome omh omm omo oo- ooa oob ood ooh oom ooo