-er bbb bbe bbi bbl bbm bbn bbr bbs be- beb bee bei bel bem ben ber bes bi- bib bie bii bil bim bin bir bis blb ble bli bll blm bln blr bls bmb bme bmi bml bmm bmn bmr bms bnb bne bni bnl bnn bnr bns brb bre bri brl brm brn brr brs bsb bse bsi bsl bsm bsn bsr bss ebb ebe ebi ebl ebm ebn ebr ebs eeb eee eel eem een eer ees eib eie eii eil eim ein eir eis elb ele eli ell elm eln elr els em- emb eme emi eml emm emn emr ems en- enb ene eni enl enm enn enr ens erb ere eri erl erm ern err ers es- esb ese esi esl esm esn esr ess ibb ibe ibi ibl ibm ibn ibr ibs ie- iee iei iel iem ien ier ies iib iie iii iil iim iin iir iis il- ilb ile ili ill ilm iln ilr ils im- imb ime imi iml imm imn ims in- inb ine ini inl inm inn inr ins ir- irb ire iri irl irm irn irr irs is- isb ise isi isl ism isn isr iss lbb lbe lbi lbl lbm lbr lbs leb lee lei lel lem len ler les lib lie lii lil lim lin lir lis llb lle lli lll llm lln llr lls lmb lme lmi lml lmm lmn lmr lms lnb lne lni lnl lnm lnn lnr lns lrb lri lrm lrn lrr lrs lsb lse lsi lsl lsm lsn lsr lss m-r mbb mbe mbi mbl mbm mbr mbs meb mee mei mel mem men mer mes mi- mib mie mii mil mim min mir mis mlb mle mli mll mlm mln mlr mls mmb mme mmi mml mmm mmn mmr mms mnb mne mni mnl mnm mnn mnr mns mrb mre mri mrl mrm mrn mrr mrs msb mse msi msl msm msn msr mss n-i nbb nbe nbi nbl nbm nbn nbr nbs ne- neb nee nei nel nem nen ner nes nib nie nii nil nim nin nir nis nlb nle nli nll nlm nln nlr nls nmb nme nmi nml nmm nmn nmr nms nnb nne nni nnl nnm nnn nns nrb nre nri nrl nrm nrn nrr nrs nsb nse nsi nsl nsm nsn nsr nss rbb rbe rbi rbl rbm rbn rbr rbs re- reb ree rei rel rem ren rer res rib rie rii ril rim rin rir ris rle rli rll rlm rln rlr rls rmb rme rmi rml rmm rmn rmr rms rnb rni rnm rnn rnr rns rrb rri rrl rrm rrn rrr rrs rsb rse rsi rsl rsm rsn rsr rss sbb sbe sbi sbl sbm sbn sbr sbs se- seb see sei sel sem sen ser ses sib sie sii sil sim sin sir sis slb sle sli sll slm sln slr sls smb sme smi sml smm smn smr sms snb sne sni snl snm snn snr sns sr- srb sre sri srl srm srn srr srs ss- ssb sse ssi ssl ssm ssn ssr sss