-er b-u bbb bbe bbi bbl bbm bbn bbr bbs bbu be- beb bee bei bel bem ben ber bes beu bi- bib bie bii bil bim bin bir bis biu blb ble bli bll blm bln blr bls blu bmb bme bmi bml bmm bmn bmr bms bmu bnb bne bni bnl bnn bnr bns bnu brb bre bri brl brm brn brr brs bru bsb bse bsi bsl bsm bsn bsr bss bsu bub bue bui bul bum bun bur bus buu ebb ebe ebi ebl ebm ebn ebr ebs ebu eeb eee eel eem een eer ees eib eie eii eil eim ein eir eis eiu elb ele eli ell elm eln elr els elu em- emb eme emi eml emm emn emr ems emu en- enb ene eni enl enm enn enr ens enu erb ere eri erl erm ern err ers eru es- esb ese esi esl esm esn esr ess esu eu- eub eue eui eul eun eur eus ibb ibe ibi ibl ibm ibn ibr ibs ibu ie- iee iei iel iem ien ier ies iib iie iii iil iim iin iir iis iiu il- ilb ile ili ill ilm iln ilr ils ilu im- imb ime imi iml imm imn ims imu in- inb ine ini inl inm inn inr ins inu ir- irb ire iri irl irm irn irr irs iru is- isb ise isi isl ism isn isr iss isu iu- iub iue iui ium iur ius lbb lbe lbi lbl lbm lbr lbs lbu leb lee lei lel lem len ler les leu lib lie lii lil lim lin lir lis liu llb lle lli lll llm lln llr lls llu lmb lme lmi lml lmm lmn lmr lms lmu lnb lne lni lnl lnm lnn lnr lns lnu lrb lri lrm lrn lrr lrs lru lsb lse lsi lsl lsm lsn lsr lss lsu lub lue lui lul lum lun lur lus luu m-r mbb mbe mbi mbl mbm mbr mbs mbu meb mee mei mel mem men mer mes meu mi- mib mie mii mil mim min mir mis miu mlb mle mli mll mlm mln mlr mls mlu mmb mme mmi mml mmm mmn mmr mms mmu mnb mne mni mnl mnm mnn mnr mns mnu mrb mre mri mrl mrm mrn mrr mrs mru msb mse msi msl msm msn msr mss msu mub mue mui mul mum mun mur mus muu n-i nbb nbe nbi nbl nbm nbn nbr nbs nbu ne- neb nee nei nel nem nen ner nes neu nib nie nii nil nim nin nir nis niu nlb nle nli nll nlm nln nlr nls nlu nmb nme nmi nml nmm nmn nmr nms nmu nnb nne nni nnl nnm nnn nns nnu nrb nre nri nrl nrm nrn nrr nrs nru nsb nse nsi nsl nsm nsn nsr nss nsu nub nue nui nul num nun nur nus nuu rbb rbe rbi rbl rbm rbn rbr rbs rbu re- reb ree rei rel rem ren rer res reu rib rie rii ril rim rin rir ris rle rli rll rlm rln rlr rls rlu rmb rme rmi rml rmm rmn rmr rms rnb rni rnm rnn rnr rns rnu rrb rri rrl rrm rrn rrr rrs rru rsb rse rsi rsl rsm rsn rsr rss rsu rub rue rui rum run rur rus ruu sbb sbe sbi sbl sbm sbn sbr sbs sbu se- seb see sei sel sem sen ser ses seu sib sie sii sil sim sin sir sis siu slb sle sli sll slm sln slr sls slu smb sme smi sml smm smn smr sms smu snb sne sni snl snm snn snr sns snu sr- srb sre sri srl srm srn srr srs ss- ssb sse ssi ssl ssm ssn ssr sss ssu sub sue sui sul sum sun sur sus suu ubb ube ubi ubl ubn ubr ubs ubu ueb uee uei uel uem uen uer ues uib uie uii uil uim uin uir uis uiu ulb ule uli ull ulm uln ulr uls ulu um- umb ume umi uml umm umn umr ums umu un- unb une uni unl unm unn unr uns unu ur- urb ure uri url urm urn urr urs uru usb use usi usl usm usn usr uss usu uue uum uun uur uus uuu