a-a a-c aaa aac aag aao aas aau ac- aca acc acg aco acs acu ag- aga agc agg ago ags agu aoa aoc aog aoo aos aou as- asa asc asg aso ass asu au- aua auc aug auo aus c-- caa cac cag cao cas cau cca ccc ccg cco ccs ccu cga cgc cgg cgo cgs cgu co- coa coc cog coo cos cou csa csc csg cso css csu cua cuc cug cuo cus cuu gaa gac gag gao gas gau gca gcc gcg gco gcs gcu gga ggc ggg ggo ggs ggu goa goc gog goo gos gou gsa gsc gsg gso gss gsu gu- gua guc gug guo gus guu oaa oac oag oao oas oau oc- oca occ ocg oco ocs ocu oga ogc ogg ogo ogs oo- ooa ooc oog ooo oos os- osa osc osg oso oss osu ou- oua ouc ouo ous saa sac sag sao sas sau sca scc scg sco scs scu sga sgc sgg sgo sgs sgu soa soc sog soo sos sou ss- ssa ssc ssg sso sss ssu sua suc sug suo sus suu ua- uaa uac uag uao uas uau uca ucc ucg uco ucs ucu uga ugc ugg ugo ugs ugu uoa uoc uog uoo uos usa usc usg uso uss usu uua uuc uug uus uuu