bbb bbg bbi bbl bbn bbr bgb bgg bgi bgl bgn bgr bi- bib big bii bil bin bir blb blg bli bll bln blr bnb bng bni bnl bnn bnr brb brg bri brl brn brr gbg gbi gbl gbn gbr ggb ggg ggi ggn ggr gib gig gii gil gin gir glb glg gli gll gln glr gnb gni gnl gnn gnr grb grg gri grl grn grr ibb ibg ibi ibl ibn ibr igb igg igi igl ign igr iib iii iil iin iir il- ilb ilg ili ill iln ilr in- inb ing ini inl inn inr ir- irb irg iri irl irn irr lbb lbg lbi lbl lbr lgb lgg lgi lgl lgn lgr lib lig lii lil lin lir llb llg lli lll lln llr lnb lng lni lnl lnn lnr lrb lrg lri lrn lrr n-i nbb nbg nbi nbl nbn nbr ngb ngg ngi ngl ngn nib nig nii nil nin nir nlb nlg nli nll nln nlr nnb nng nni nnl nnn nrb nrg nri nrl nrn nrr rbb rbg rbi rbl rbn rbr rgb rgg rgi rgn rgr rib rig rii ril rin rir rlg rli rll rln rlr rnb rng rni rnn rnr rrb rrg rri rrl rrn rrr