-er b-u bbb bbe bbi bbl bbn bbr bbs bbt bbu be- beb bee bei bel ben ber bes bet beu bi- bib bie bii bil bin bir bis bit biu blb ble bli bll bln blr bls blt blu bnb bne bni bnl bnn bnr bns bnt bnu brb bre bri brl brn brr brs brt bru bsb bse bsi bsl bsn bsr bss bst bsu btb bte bti btl btn btr bts btt btu bub bue bui bul bun bur bus but buu ebb ebe ebi ebl ebn ebr ebs ebt ebu eeb eee eel een eer ees eet eib eie eii eil ein eir eis eit eiu elb ele eli ell eln elr els elt elu en- enb ene eni enl enn enr ens ent enu erb ere eri erl ern err ers ert eru es- esb ese esi esl esn esr ess est esu etb ete eti etl etn etr ets ett etu eu- eub eue eui eul eun eur eus eut ibb ibe ibi ibl ibn ibr ibs ibt ibu ie- iee iei iel ien ier ies iet iib iie iii iil iin iir iis iit iiu il- ilb ile ili ill iln ilr ils ilt ilu in- inb ine ini inl inn inr ins int inu ir- irb ire iri irl irn irr irs irt iru is- isb ise isi isl isn isr iss ist isu itb ite iti itl itn its itt itu iu- iub iue iui iur ius iut lbb lbe lbi lbl lbr lbs lbt lbu leb lee lei lel len ler les let leu lib lie lii lil lin lir lis lit liu llb lle lli lll lln llr lls llt llu lnb lne lni lnl lnn lnr lns lnt lnu lrb lri lrn lrr lrs lrt lru lsb lse lsi lsl lsn lsr lss lst lsu ltb lte lti ltl ltr lts ltt ltu lub lue lui lul lun lur lus lut luu n-i nbb nbe nbi nbl nbn nbr nbs nbt nbu ne- neb nee nei nel nen ner nes net neu nib nie nii nil nin nir nis nit niu nlb nle nli nll nln nlr nls nlt nlu nnb nne nni nnl nnn nns nnt nnu nrb nre nri nrl nrn nrr nrs nrt nru nsb nse nsi nsl nsn nsr nss nst nsu ntb nte nti ntn ntr nts ntt ntu nub nue nui nul nun nur nus nut nuu rbb rbe rbi rbl rbn rbr rbs rbt rbu re- reb ree rei rel ren rer res ret reu rib rie rii ril rin rir ris rit rle rli rll rln rlr rls rlt rlu rnb rni rnn rnr rns rnt rnu rrb rri rrl rrn rrr rrs rrt rru rsb rse rsi rsl rsn rsr rss rst rsu rtb rte rti rtl rtn rtr rts rtt rtu rub rue rui run rur rus rut ruu sbb sbe sbi sbl sbn sbr sbs sbt sbu se- seb see sei sel sen ser ses set seu sib sie sii sil sin sir sis sit siu slb sle sli sll sln slr sls slt slu snb sne sni snl snn snr sns snt snu sr- srb sre sri srl srn srr srs srt ss- ssb sse ssi ssl ssn ssr sss sst ssu stb ste sti stl stn str sts stt stu sub sue sui sul sun sur sus sut suu tbb tbe tbi tbl tbn tbr tbs tbt tbu te- teb tee tei tel ten ter tes tet teu tib tie tii til tin tir tis tit tiu tle tli tll tln tlr tls tlt tlu tnb tne tni tnl tnn tnr tns tnt trb tre tri trl trn trr trs trt tru tsb tse tsi tsl tsn tsr tss tst tsu ttb tte tti ttl ttn ttr tts ttt ttu tub tue tui tul tun tur tus tut tuu ubb ube ubi ubl ubn ubr ubs ubt ubu ueb uee uei uel uen uer ues uet uib uie uii uil uin uir uis uit uiu ulb ule uli ull uln ulr uls ult ulu un- unb une uni unl unn unr uns unt unu ur- urb ure uri url urn urr urs urt uru usb use usi usl usn usr uss ust usu utb ute uti utl utn utr uts utt utu uue uun uur uus uut uuu