a-a a-i aaa aag aai aap aar aax ag- aga agg agi agp agr agx ai- aia aig aii aip air aix ap- apa apg api app apr apx ar- ara arg ari arp arr arx ax- axa axi axp axr axx g-p gaa gag gai gap gar gga ggg ggi ggp ggr gia gig gii gip gir gpa gpg gpi gpp gpr gpx gra grg gri grp grr grx gxa gxp ia- iaa iag iai iap iar iga igg igi igp igr iia iii iip iir iix ipa ipg ipi ipp ipr ipx ir- ira irg iri irp irr irx ixi p-p paa pag pai pap par pax pga pgg pgi pgp pgr pia pig pii pip pir pix ppa ppg ppi ppp ppr ppx pra prg pri prp prr prx pxg pxr ra- raa rag rai rap rar rax rga rgg rgi rgp rgr rgx ria rig rii rip rir rix rpa rpg rpi rpp rpr rpx rra rrg rri rrp rrr rxp rxr xaa xag xap xar xgi xgp xia xii xix xpa xpg xpp xrx xxi xxp xxx