-er b-u bbb bbe bbl bbn bbr bbt bbu be- beb bee bel ben ber bet beu blb ble bll bln blr blt blu bnb bne bnl bnn bnr bnt bnu brb bre brl brn brr brt bru btb bte btl btn btr btt btu bub bue bul bun bur but buu ebb ebe ebl ebn ebr ebt ebu eeb eee eel een eer eet elb ele ell eln elr elt elu en- enb ene enl enn enr ent enu erb ere erl ern err ert eru etb ete etl etn etr ett etu eu- eub eue eul eun eur eut lbb lbe lbl lbr lbt lbu leb lee lel len ler let leu llb lle lll lln llr llt llu lnb lne lnl lnn lnr lnt lnu lrb lrn lrr lrt lru ltb lte ltl ltr ltt ltu lub lue lul lun lur lut luu nbb nbe nbl nbn nbr nbt nbu ne- neb nee nel nen ner net neu nlb nle nll nln nlr nlt nlu nnb nne nnl nnn nnt nnu nrb nre nrl nrn nrr nrt nru ntb nte ntn ntr ntt ntu nub nue nul nun nur nut nuu rbb rbe rbl rbn rbr rbt rbu re- reb ree rel ren rer ret reu rle rll rln rlr rlt rlu rnb rnn rnr rnt rnu rrb rrl rrn rrr rrt rru rtb rte rtl rtn rtr rtt rtu rub rue run rur rut ruu tbb tbe tbl tbn tbr tbt tbu te- teb tee tel ten ter tet teu tle tll tln tlr tlt tlu tnb tne tnl tnn tnr tnt trb tre trl trn trr trt tru ttb tte ttl ttn ttr ttt ttu tub tue tul tun tur tut tuu ubb ube ubl ubn ubr ubt ubu ueb uee uel uen uer uet ulb ule ull uln ulr ult ulu un- unb une unl unn unr unt unu ur- urb ure url urn urr urt uru utb ute utl utn utr utt utu uue uun uur uut uuu