bbb bbe bbi bbl bbn be- beb bee bei bel ben bev bi- bib bie bii bil bin biv blb ble bli bll bln blv bnb bne bni bnl bnn bnv bvb bve bvi bvl bvn bvv ebb ebe ebi ebl ebn ebv eeb eee eel een eev eib eie eii eil ein eiv elb ele eli ell eln elv en- enb ene eni enl enn env evb eve evi evl evn evv i-v ibb ibe ibi ibl ibn ibv ie- iee iei iel ien iev iib iie iii iil iin il- ilb ile ili ill iln ilv in- inb ine ini inl inn inv ivb ive ivi ivl ivv lbb lbe lbi lbl lbv leb lee lei lel len lev lib lie lii lil lin liv llb lle lli lll lln llv lnb lne lni lnl lnn lvb lve lvi lvl lvn lvv n-i nbb nbe nbi nbl nbn nbv ne- neb nee nei nel nen nev nib nie nii nil nin niv nlb nle nli nll nln nlv nnb nne nni nnl nnn nnv nvb nve nvi nvl nvn nvv v-e vbi vbl vbv veb vee vei vel ven vi- vib vie vii vil vin viv vl- vlb vle vll vlv vn- vni vnl vnv vvb vvi vvv