-er bbb bbe bbi bbk bbl bbn bbr be- beb bee bei bek bel ben ber bi- bib bie bii bik bil bin bir bkb bke bkk bkl bkn bkr blb ble bli blk bll bln blr bnb bne bni bnk bnl bnn bnr brb bre bri brk brl brn brr ebb ebe ebi ebk ebl ebn ebr eeb eee eek eel een eer eib eie eii eik eil ein eir ekb eke eki ekl ekr elb ele eli elk ell eln elr en- enb ene eni enk enl enn enr erb ere eri erk erl ern err ibb ibe ibi ibk ibl ibn ibr ie- iee iei iek iel ien ier iib iie iii iil iin iir ikb ike iki ikk ikl ikr il- ilb ile ili ilk ill iln ilr in- inb ine ini ink inl inn inr ir- irb ire iri irk irl irn irr kbb kbe kbi kbk kbl kbn kbr ke- keb kee kei kek kel ken ker kib kie kii kik kil kin kir kkb kke kki kkk kkl kkn kkr kl- klb kli klr kn- kne kni knk knl knn knr kri krk krl krn krr lbb lbe lbi lbk lbl lbr leb lee lei lek lel len ler lib lie lii lik lil lin lir lkb lkl lkr llb lle lli llk lll lln llr lnb lne lni lnk lnl lnn lnr lrb lri lrk lrn lrr n-i nbb nbe nbi nbk nbl nbn nbr ne- neb nee nei nek nel nen ner nib nie nii nik nil nin nir nke nki nkk nkn nkr nlb nle nli nlk nll nln nlr nnb nne nni nnk nnl nnn nrb nre nri nrk nrl nrn nrr rbb rbe rbi rbk rbl rbn rbr re- reb ree rei rek rel ren rer rib rie rii rik ril rin rir rkb rke rkk rle rli rll rln rlr rnb rni rnn rnr rrb rri rrk rrl rrn rrr