a-a a-c aaa aac aae aag aan aav ac- aca acc ace acg acn acv aea aec aee aeg aen aev ag- aga agc age agg agn agv an- ana anc ane ang ann anv av- ava avc ave avg avn c-- caa cac cae cag can cav cca ccc cce ccg ccn ccv ce- cea cec cee ceg cen cev cga cgc cge cgg cgn cgv cn- cna cnc cne cng cnn cnv cva cvc cve cvg cvn cvv eaa eac eae eag ean eav ec- eca ecc ece ecg ecn ecv eea eec eee eeg een eev ega egc ege egg egn en- ena enc ene eng enn env eva evc eve evg evn evv gaa gac gae gag gan gav gca gcc gce gcg gcn ge- gea gec gee geg gen gev gga ggc ggg ggn ggv gna gnc gne gnn gnv gva gvc gve gvg gvn naa nac nae nag nan nav nca ncc nce ncg ncn ncv ne- nea nec nee neg nen nev nga ngc nge ngg ngn nna nnc nne nng nnn nnv nva nvc nve nvg nvn nvv v-a v-e vaa vac vae vag van vav vca vcc vce vcn vea vec vee veg ven vga vgc vgg vgn vn- vna vng vnv vva vvc vvg vvv