-er bbb bbe bbg bbi bbk bbl bbn bbr be- beb bee beg bei bek bel ben ber bgb bge bgg bgi bgk bgl bgn bgr bi- bib bie big bii bik bil bin bir bkb bke bkg bkk bkl bkn bkr blb ble blg bli blk bll bln blr bnb bne bng bni bnk bnl bnn bnr brb bre brg bri brk brl brn brr ebb ebe ebg ebi ebk ebl ebn ebr eeb eee eeg eek eel een eer egb ege egg egi egl egn egr eib eie eig eii eik eil ein eir ekb eke ekg eki ekl ekr elb ele elg eli elk ell eln elr en- enb ene eng eni enk enl enn enr erb ere erg eri erk erl ern err gbe gbg gbi gbk gbl gbn gbr ge- geb gee geg gei gek gel gen ger ggb ggg ggi ggn ggr gib gie gig gii gik gil gin gir gkb gkn glb gle glg gli glk gll gln glr gnb gne gni gnl gnn gnr grb gre grg gri grk grl grn grr ibb ibe ibg ibi ibk ibl ibn ibr ie- iee ieg iei iek iel ien ier igb ige igg igi igk igl ign igr iib iie iii iil iin iir ikb ike iki ikk ikl ikr il- ilb ile ilg ili ilk ill iln ilr in- inb ine ing ini ink inl inn inr ir- irb ire irg iri irk irl irn irr kbb kbe kbi kbk kbl kbn kbr ke- keb kee keg kei kek kel ken ker kgb kgi kgl kib kie kig kii kik kil kin kir kkb kke kki kkk kkl kkn kkr kl- klb klg kli klr kn- kne kng kni knk knl knn knr krg kri krk krl krn krr lbb lbe lbg lbi lbk lbl lbr leb lee leg lei lek lel len ler lgb lge lgg lgi lgk lgl lgn lgr lib lie lig lii lik lil lin lir lkb lkg lkl lkr llb lle llg lli llk lll lln llr lnb lne lng lni lnk lnl lnn lnr lrb lrg lri lrk lrn lrr n-i nbb nbe nbg nbi nbk nbl nbn nbr ne- neb nee neg nei nek nel nen ner ngb nge ngg ngi ngk ngl ngn nib nie nig nii nik nil nin nir nke nki nkk nkn nkr nlb nle nlg nli nlk nll nln nlr nnb nne nng nni nnk nnl nnn nrb nre nrg nri nrk nrl nrn nrr rbb rbe rbg rbi rbk rbl rbn rbr re- reb ree reg rei rek rel ren rer rgb rge rgg rgi rgk rgn rgr rib rie rig rii rik ril rin rir rkb rke rkg rkk rle rlg rli rll rln rlr rnb rng rni rnn rnr rrb rrg rri rrk rrl rrn rrr