a-a a-c a-t aaa aac aam aan aao aat ac- aca acc acm acn aco act ama amc amm amn amo amt an- ana anc anm ann ano ant aoa aoc aom aon aoo aot at- ata atc atm atn ato att c-- caa cac cam can cao cat cca ccc ccm ccn cco cct cma cmc cmm cmn cmo cmt cn- cna cnc cnm cnn cno cnt co- coa coc com con coo cot cta ctc ctm ctn cto ctt m-o maa mac mam man mao mat mc- mca mcc mcm mcn mco mct mma mmc mmm mmn mmo mmt mna mnc mnm mnn mno mnt moa moc mom mon moo mot mta mtc mtm mtn mto mtt naa nac nam nan nao nat nca ncc ncm ncn nco nct nma nmc nmm nmn nmo nmt nna nnc nnm nnn nno nnt no- noa noc nom non noo not nta ntc ntm ntn nto ntt oaa oac oam oan oao oat oc- oca occ ocm ocn oco oct om- oma omc omm omn omo omt on- ona onc onn ono ont oo- ooa ooc oom oon ooo oot ot- ota otc otm otn oto ott taa tac tam tan tao tat tca tcc tcm tcn tco tct tma tmc tmm tmn tmo tmt tna tnc tnm tnn tno tnt to- toa toc tom ton too tot tta ttc ttm ttn tto ttt