a-a a-i aaa aag aai aap aar aas ag- aga agg agi agp agr ags ai- aia aig aii aip air ais ap- apa apg api app apr aps ar- ara arg ari arp arr ars as- asa asg asi asp asr ass g-p gaa gag gai gap gar gas gga ggg ggi ggp ggr ggs gia gig gii gip gir gis gpa gpg gpi gpp gpr gps gra grg gri grp grr grs gsa gsg gsi gsp gsr gss ia- iaa iag iai iap iar ias iga igg igi igp igr igs iia iii iip iir iis ipa ipg ipi ipp ipr ips ir- ira irg iri irp irr irs is- isa isg isi isp isr iss p-p paa pag pai pap par pas pga pgg pgi pgp pgr pgs pia pig pii pip pir pis ppa ppg ppi ppp ppr pps pra prg pri prp prr prs ps- psa psg psi psp psr pss ra- raa rag rai rap rar ras rga rgg rgi rgp rgr rgs ria rig rii rip rir ris rpa rpg rpi rpp rpr rps rra rrg rri rrp rrr rrs rsa rsg rsi rsp rsr rss saa sag sai sap sar sas sga sgg sgi sgp sgr sgs sia sig sii sip sir sis spa spg spi spp spr sps sr- sra srg sri srp srr srs ss- ssa ssg ssi ssp ssr sss