a-a a-c aaa aac aag aap aar aas ac- aca acc acg acp acr acs ag- aga agc agg agp agr ags ap- apa apc apg app apr aps ar- ara arc arg arp arr ars as- asa asc asg asp asr ass c-- caa cac cag cap car cas cca ccc ccg ccp ccr ccs cga cgc cgg cgp cgr cgs cpa cpc cpg cpp cpr cps cra crc crg crp crr crs csa csc csg csp csr css g-p gaa gac gag gap gar gas gca gcc gcg gcp gcr gcs gga ggc ggg ggp ggr ggs gpa gpc gpg gpp gpr gps gra grc grg grp grr grs gsa gsc gsg gsp gsr gss p-p paa pac pag pap par pas pca pcc pcg pcp pcr pcs pga pgc pgg pgp pgr pgs ppa ppc ppg ppp ppr pps pra prc prg prp prr prs ps- psa psc psg psp psr pss ra- raa rac rag rap rar ras rca rcc rcg rcp rcr rcs rga rgc rgg rgp rgr rgs rpa rpc rpg rpp rpr rps rra rrc rrg rrp rrr rrs rsa rsc rsg rsp rsr rss saa sac sag sap sar sas sca scc scg scp scr scs sga sgc sgg sgp sgr sgs spa spc spg spp spr sps sr- sra src srg srp srr srs ss- ssa ssc ssg ssp ssr sss