a-a a-c a-t aaa aac aan aat aav ac- aca acc acn act acv an- ana anc ann ant anv at- ata atc atn att atv av- ava avc avn avt c-- caa cac can cat cav cca ccc ccn cct ccv cn- cna cnc cnn cnt cnv cta ctc ctn ctt ctv cva cvc cvn cvt cvv naa nac nan nat nav nca ncc ncn nct ncv nna nnc nnn nnt nnv nta ntc ntn ntt ntv nva nvc nvn nvt nvv taa tac tan tat tav tca tcc tcn tct tcv tna tnc tnn tnt tta ttc ttn ttt ttv tva tvc tvn tvt v-a vaa vac van vat vav vca vcc vcn vct vn- vna vnv vta vtc vtt vtv vva vvc vvt vvv