-er bbb bbe bbi bbl bbn bbr be- beb bee bei bel ben ber bev bi- bib bie bii bil bin bir biv blb ble bli bll bln blr blv bnb bne bni bnl bnn bnr bnv brb bre bri brl brn brr brv bvb bve bvi bvl bvn bvr bvv ebb ebe ebi ebl ebn ebr ebv eeb eee eel een eer eev eib eie eii eil ein eir eiv elb ele eli ell eln elr elv en- enb ene eni enl enn enr env erb ere eri erl ern err erv evb eve evi evl evn evr evv i-v ibb ibe ibi ibl ibn ibr ibv ie- iee iei iel ien ier iev iib iie iii iil iin iir il- ilb ile ili ill iln ilr ilv in- inb ine ini inl inn inr inv ir- irb ire iri irl irn irr irv ivb ive ivi ivl ivr ivv lbb lbe lbi lbl lbr lbv leb lee lei lel len ler lev lib lie lii lil lin lir liv llb lle lli lll lln llr llv lnb lne lni lnl lnn lnr lrb lri lrn lrr lrv lvb lve lvi lvl lvn lvr lvv n-i nbb nbe nbi nbl nbn nbr nbv ne- neb nee nei nel nen ner nev nib nie nii nil nin nir niv nlb nle nli nll nln nlr nlv nnb nne nni nnl nnn nnv nrb nre nri nrl nrn nrr nrv nvb nve nvi nvl nvn nvv rbb rbe rbi rbl rbn rbr re- reb ree rei rel ren rer rev rib rie rii ril rin rir riv rle rli rll rln rlr rnb rni rnn rnr rnv rrb rri rrl rrn rrr rvb rve rvi rvl rvn rvr rvv v-e vbi vbl vbr vbv veb vee vei vel ven ver vi- vib vie vii vil vin vir viv vl- vlb vle vll vlv vn- vni vnl vnr vnv vrb vre vri vrn vrr vvb vvi vvr vvv