a-a a-c aaa aac aad aag aar aau ac- aca acc acd acg acr acu ad- ada adc add adg adr adu ag- aga agc agd agg agr agu ar- ara arc ard arg arr aru au- aua auc aud aug aur c-- caa cac cad cag car cau cca ccc ccd ccg ccr ccu cda cdc cdd cdg cdr cdu cga cgc cgd cgg cgr cgu cra crc crd crg crr cru cua cuc cud cug cur cuu daa dac dad dag dar dau dca dcc dcd dcg dcr dcu dda ddc ddd ddg ddr ddu dga dgc dgd dgg dgr dgu dra drc drd drg drr dru dua duc dud dug dur g-d gaa gac gad gag gar gau gca gcc gcd gcg gcr gcu gda gdc gdd gdr gdu gga ggc ggd ggg ggr ggu gra grc grd grg grr gru gu- gua guc gud gug gur guu ra- raa rac rad rag rar rau rca rcc rcd rcg rcr rcu rda rdc rdd rdg rdr rdu rga rgc rgd rgg rgr rra rrc rrd rrg rrr rru rua ruc rud rug rur ruu ua- uaa uac uad uag uar uau uca ucc ucd ucg ucr ucu uda udc udd udg udr udu uga ugc ugg ugr ugu ur- ura urc urd urg urr uru uua uuc uug uur uuu