a-a a-c aaa aac aag aao aar aas aau aay ac- aca acc acg aco acr acs acu acy ag- aga agc agg ago agr ags agu agy aoa aoc aog aoo aor aos aou ar- ara arc arg aro arr ars aru ary as- asa asc asg aso asr ass asu asy au- aua auc aug auo aur aus ay- aya ayc ayo ayr ays ayu c-- caa cac cag cao car cas cau cay cca ccc ccg cco ccr ccs ccu cga cgc cgg cgo cgr cgs cgu cgy co- coa coc cog coo cor cos cou coy cra crc crg cro crr crs cru cry csa csc csg cso csr css csu csy cua cuc cug cuo cur cus cuu cuy cya cyc cyg cyo cyr cys gaa gac gag gao gar gas gau gay gca gcc gcg gco gcr gcs gcu gga ggc ggg ggo ggr ggs ggu goa goc gog goo gor gos gou goy gra grc grg gro grr grs gru gry gsa gsc gsg gso gsr gss gsu gu- gua guc gug guo gur gus guu guy gy- gya gyo gyr gys oaa oac oag oao oar oas oau oc- oca occ ocg oco ocr ocs ocu oga ogc ogg ogo ogs ogy oo- ooa ooc oog ooo oor oos or- ora orc org oro orr ors oru ory os- osa osc osg oso osr oss osu ou- oua ouc ouo our ous oya oyo oys ra- raa rac rag rao rar ras rau ray rca rcc rcg rco rcr rcs rcu rga rgc rgg rgo rgr rgs roa roc rog roo ror ros rou roy rra rrc rrg rrr rrs rru rsa rsc rsg rso rsr rss rsu rua ruc rug ruo rur rus ruu ruy ry- rya ryc ryg ryo ryr rys ryu ryy saa sac sag sao sar sas sau say sca scc scg sco scr scs scu sga sgc sgg sgo sgr sgs sgu soa soc sog soo sor sos sou soy sr- sra src srg sro srr srs sry ss- ssa ssc ssg sso ssr sss ssu sua suc sug suo sur sus suu suy sy- sya syc syg syr sys syu ua- uaa uac uag uao uar uas uau uay uca ucc ucg uco ucr ucs ucu uga ugc ugg ugo ugr ugs ugu uoa uoc uog uoo uor uos ur- ura urc urg uro urr urs uru ury usa usc usg uso usr uss usu uua uuc uug uur uus uuu uyc uyo uys uyu yaa yac yag yao yar yas yau yay yca ycc yco ycs ycu ycy yga ygc ygo yoc yog yoo yor yos you yoy yra yrc yrg yro yrs yru ysa ysc ysg yso ysr yss ysu ysy yua yug yuo yur yus yuu yuy yyc yyg yys yyu yyy