a-a a-c aaa aac aag aan aar aav ac- aca acc acg acn acr acv ag- aga agc agg agn agr agv an- ana anc ang ann anr anv ar- ara arc arg arn arr arv av- ava avc avg avn avr c-- caa cac cag can car cav cca ccc ccg ccn ccr ccv cga cgc cgg cgn cgr cgv cn- cna cnc cng cnn cnr cnv cra crc crg crn crr crv cva cvc cvg cvn cvr cvv gaa gac gag gan gar gav gca gcc gcg gcn gcr gga ggc ggg ggn ggr ggv gna gnc gnn gnr gnv gra grc grg grn grr grv gva gvc gvg gvn gvr naa nac nag nan nar nav nca ncc ncg ncn ncr ncv nga ngc ngg ngn nna nnc nng nnn nnv nra nrc nrg nrn nrr nrv nva nvc nvg nvn nvv ra- raa rac rag ran rar rav rca rcc rcg rcn rcr rcv rga rgc rgg rgn rgr rgv rna rnc rng rnn rnr rnv rra rrc rrg rrn rrr rva rvc rvg rvn rvr rvv v-a vaa vac vag van var vav vca vcc vcn vcr vga vgc vgg vgn vgr vn- vna vng vnr vnv vra vrc vrg vrn vrr vva vvc vvg vvr vvv