a-a a-b aaa aab aag aah aap aar ab- aba abb abg abh abp abr ag- aga agb agg agh agp agr aha ahb ahg ahh ahp ahr ap- apa apb apg aph app apr ar- ara arb arg arh arp arr b-p baa bab bag bah bap bar bba bbb bbg bbh bbp bbr bga bgb bgg bgh bgp bgr bha bhb bhg bhh bhp bhr bpa bpb bpg bph bpp bpr bra brb brg brh brp brr g-p gaa gab gag gah gap gar gba gbg gbh gbp gbr gga ggb ggg ggh ggp ggr gha ghb ghg ghh ghp ghr gpa gpb gpg gph gpp gpr gra grb grg grh grp grr haa hab hag hah hap har hba hbb hbg hbh hbp hbr hga hgb hgg hgh hgp hgr hha hhb hhg hhh hhp hhr hpa hpb hpg hph hpp hpr hr- hra hrb hrg hrh hrp hrr p-p paa pab pag pah pap par pba pbb pbg pbp pbr pga pgb pgg pgh pgp pgr pha phb phg php phr ppa ppb ppg pph ppp ppr pra prb prg prh prp prr ra- raa rab rag rah rap rar rba rbb rbg rbh rbp rbr rga rgb rgg rgh rgp rgr rh- rha rhb rhg rhh rhp rhr rpa rpb rpg rph rpp rpr rra rrb rrg rrh rrp rrr