a-a a-c aaa aac aag aar aau aav ac- aca acc acg acr acu acv ag- aga agc agg agr agu agv ar- ara arc arg arr aru arv au- aua auc aug aur auv av- ava avc avg avr avu c-- caa cac cag car cau cav cca ccc ccg ccr ccu ccv cga cgc cgg cgr cgu cgv cra crc crg crr cru crv cua cuc cug cur cuu cuv cva cvc cvg cvr cvu cvv gaa gac gag gar gau gav gca gcc gcg gcr gcu gga ggc ggg ggr ggu ggv gra grc grg grr gru grv gu- gua guc gug gur guu guv gva gvc gvg gvr gvu ra- raa rac rag rar rau rav rca rcc rcg rcr rcu rcv rga rgc rgg rgr rgv rra rrc rrg rrr rru rua ruc rug rur ruu ruv rva rvc rvg rvr rvu rvv ua- uaa uac uag uar uau uav uca ucc ucg ucr ucu ucv uga ugc ugg ugr ugu ur- ura urc urg urr uru uua uuc uug uur uuu uva uvc uvu uvv v-a vaa vac vag var vau vav vca vcc vcr vcu vga vgc vgg vgr vgu vra vrc vrg vrr vru vug vur vuv vva vvc vvg vvr vvv