a-a a-c aaa aac aag aak aao aas aav ac- aca acc acg ack aco acs acv ag- aga agc agg agk ago ags agv aka akc akg akk ako aks akv aoa aoc aog aok aoo aos aov as- asa asc asg ask aso ass asv av- ava avc avg avk avo avs c-- caa cac cag cak cao cas cav cca ccc ccg cck cco ccs ccv cga cgc cgg cgo cgs cgv cka ckc cko cks co- coa coc cog cok coo cos cov csa csc csg csk cso css csv cva cvc cvg cvk cvo cvs cvv gaa gac gag gak gao gas gav gca gcc gcg gck gco gcs gga ggc ggg ggo ggs ggv gka gko gks goa goc gog gok goo gos gov gsa gsc gsg gsk gso gss gsv gva gvc gvg gvk gvo gvs ka- kaa kac kag kak kao kas kav kca kcc kcg kck kcs kga kgc kgo kgs kgv kkc kkk kks kkv koa koc kog kok koo kos ksa ksc ksg ksk kso kss ksv kva kvk kvo kvs kvv oaa oac oag oak oao oas oav oc- oca occ ocg ock oco ocs ocv oga ogc ogg ogo ogs oka okc okg okk oko oks oo- ooa ooc oog ook ooo oos oov os- osa osc osg osk oso oss osv ov- ova ovc ovo ovs ovv saa sac sag sak sao sas sav sca scc scg sck sco scs scv sga sgc sgg sgk sgo sgs sgv sk- ska skc skg skk sko sks soa soc sog sok soo sos sov ss- ssa ssc ssg ssk sso sss ssv sva svc svg svk svo svs svv v-a vaa vac vag vak vao vas vav vca vcc vco vcs vga vgc vgg vgo vgs vka vkg voa voc vog vok voo vos vov vsa vsc vsg vsk vso vss vsv vva vvc vvg vvo vvs vvv