a-a a-b aaa aab aag aah aao aap aar ab- aba abb abg abh abo abp abr ag- aga agb agg agh ago agp agr aha ahb ahg ahh aho ahp ahr aoa aob aog aoh aoo aop aor ap- apa apb apg aph apo app apr ar- ara arb arg arh aro arp arr b-p baa bab bag bah bao bap bar bba bbb bbg bbh bbo bbp bbr bga bgb bgg bgh bgo bgp bgr bha bhb bhg bhh bho bhp bhr boa bob bog boh boo bop bor bpa bpb bpg bph bpo bpp bpr bra brb brg brh bro brp brr g-p gaa gab gag gah gao gap gar gba gbg gbh gbo gbp gbr gga ggb ggg ggh ggo ggp ggr gha ghb ghg ghh gho ghp ghr goa gob gog goh goo gop gor gpa gpb gpg gph gpo gpp gpr gra grb grg grh gro grp grr haa hab hag hah hao hap har hba hbb hbg hbh hbo hbp hbr hga hgb hgg hgh hgo hgp hgr hha hhb hhg hhh hho hhp hhr hoa hob hog hoh hoo hop hor hpa hpb hpg hph hpo hpp hpr hr- hra hrb hrg hrh hro hrp hrr oaa oab oag oah oao oap oar ob- oba obb obg obh obo obp obr oga ogg ogh ogo ogp oha ohg ohh oho ohp ohr oo- ooa oob oog ooh ooo oop oor op- opa opb opg oph opo opp opr or- ora orb org orh oro orp orr p-p paa pab pag pah pao pap par pba pbb pbg pbo pbp pbr pga pgb pgg pgh pgo pgp pgr pha phb phg pho php phr poa pob pog poh poo pop por ppa ppb ppg pph ppo ppp ppr pra prb prg prh pro prp prr ra- raa rab rag rah rao rap rar rba rbb rbg rbh rbo rbp rbr rga rgb rgg rgh rgo rgp rgr rh- rha rhb rhg rhh rho rhp rhr roa rob rog roh roo rop ror rpa rpb rpg rph rpo rpp rpr rra rrb rrg rrh rrp rrr