b-p bbb bbg bbi bbk bbp bbr bgb bgg bgi bgk bgp bgr bi- bib big bii bik bip bir bkb bkg bkk bkp bkr bpb bpg bpi bpp bpr brb brg bri brk brp brr g-p gbg gbi gbk gbp gbr ggb ggg ggi ggp ggr gib gig gii gik gip gir gkb gkp gpb gpg gpi gpk gpp gpr grb grg gri grk grp grr ibb ibg ibi ibk ibp ibr igb igg igi igk igp igr iib iii iip iir ikb iki ikk ikr ipb ipg ipi ipp ipr ir- irb irg iri irk irp irr kbb kbi kbk kbp kbr kgb kgi kgp kib kig kii kik kip kir kkb kki kkk kkp kkr kpi kpk kpp kpr krg kri krk krp krr p-p pbb pbg pbi pbk pbp pbr pgb pgg pgi pgk pgp pgr pib pig pii pik pip pir pkb pkg pki pkp pkr ppb ppg ppi ppk ppp ppr prb prg pri prk prp prr rbb rbg rbi rbk rbp rbr rgb rgg rgi rgk rgp rgr rib rig rii rik rip rir rkb rkg rkk rkp rpb rpg rpi rpk rpp rpr rrb rrg rri rrk rrp rrr