a-a aaa aag aap aar aas ag- aga agg agp agr ags ap- apa apg app apr aps ar- ara arg arp arr ars as- asa asg asp asr ass g-p gaa gag gap gar gas gga ggg ggp ggr ggs gpa gpg gpp gpr gps gra grg grp grr grs gsa gsg gsp gsr gss p-p paa pag pap par pas pga pgg pgp pgr pgs ppa ppg ppp ppr pps pra prg prp prr prs ps- psa psg psp psr pss ra- raa rag rap rar ras rga rgg rgp rgr rgs rpa rpg rpp rpr rps rra rrg rrp rrr rrs rsa rsg rsp rsr rss saa sag sap sar sas sga sgg sgp sgr sgs spa spg spp spr sps sr- sra srg srp srr srs ss- ssa ssg ssp ssr sss