bbb bbe bbi bbl bbn be- beb bee bei bel ben bi- bib bie bii bil bin blb ble bli bll bln bnb bne bni bnl bnn ebb ebe ebi ebl ebn eeb eee eel een eib eie eii eil ein elb ele eli ell eln en- enb ene eni enl enn ibb ibe ibi ibl ibn ie- iee iei iel ien iib iie iii iil iin il- ilb ile ili ill iln in- inb ine ini inl inn lbb lbe lbi lbl leb lee lei lel len lib lie lii lil lin llb lle lli lll lln lnb lne lni lnl lnn n-i nbb nbe nbi nbl nbn ne- neb nee nei nel nen nib nie nii nil nin nlb nle nli nll nln nnb nne nni nnl nnn