-er b-u bbb bbe bbi bbm bbn bbr bbs bbu bbx be- beb bee bei bem ben ber bes beu bex bi- bib bie bii bim bin bir bis biu bix bmb bme bmi bmm bmn bmr bms bmu bmx bnb bne bni bnn bnr bns bnu bnx brb bre bri brm brn brr brs bru brx bsb bse bsi bsm bsn bsr bss bsu bsx bub bue bui bum bun bur bus buu bux bxb bxi bxm bxn bxx ebb ebe ebi ebm ebn ebr ebs ebu ebx eeb eee eem een eer ees eex eib eie eii eim ein eir eis eiu eix em- emb eme emi emm emn emr ems emu emx en- enb ene eni enm enn enr ens enu erb ere eri erm ern err ers eru es- esb ese esi esm esn esr ess esu esx eu- eub eue eui eun eur eus eux ex- exe exi exr exs exu exx ibb ibe ibi ibm ibn ibr ibs ibu ibx ie- iee iei iem ien ier ies iex iib iie iii iim iin iir iis iiu iix im- imb ime imi imm imn ims imu imx in- inb ine ini inm inn inr ins inu inx ir- irb ire iri irm irn irr irs iru irx is- isb ise isi ism isn isr iss isu iu- iub iue iui ium iur ius ixe ixi ixn m-r mbb mbe mbi mbm mbr mbs mbu mbx meb mee mei mem men mer mes meu mex mi- mib mie mii mim min mir mis miu mix mmb mme mmi mmm mmn mmr mms mmu mmx mnb mne mni mnm mnn mnr mns mnu mrb mre mri mrm mrn mrr mrs mru mrx msb mse msi msm msn msr mss msu msx mub mue mui mum mun mur mus muu mux mxi mxn mxr mxs mxu n-i nbb nbe nbi nbm nbn nbr nbs nbu nbx ne- neb nee nei nem nen ner nes neu nex nib nie nii nim nin nir nis niu nix nmb nme nmi nmm nmn nmr nms nmu nnb nne nni nnm nnn nns nnu nrb nre nri nrm nrn nrr nrs nru nrx nsb nse nsi nsm nsn nsr nss nsu nsx nub nue nui num nun nur nus nuu nux rbb rbe rbi rbm rbn rbr rbs rbu rbx re- reb ree rei rem ren rer res reu rex rib rie rii rim rin rir ris rix rmb rme rmi rmm rmn rmr rms rmx rnb rni rnm rnn rnr rns rnu rrb rri rrm rrn rrr rrs rru rsb rse rsi rsm rsn rsr rss rsu rsx rub rue rui rum run rur rus ruu rux rxr rxs sbb sbe sbi sbm sbn sbr sbs sbu sbx se- seb see sei sem sen ser ses seu sex sib sie sii sim sin sir sis siu six smb sme smi smm smn smr sms smu smx snb sne sni snm snn snr sns snu sr- srb sre sri srm srn srr srs srx ss- ssb sse ssi ssm ssn ssr sss ssu ssx sub sue sui sum sun sur sus suu sux sxi sxm sxn sxs sxu ubb ube ubi ubn ubr ubs ubu ubx ueb uee uei uem uen uer ues uib uie uii uim uin uir uis uiu um- umb ume umi umm umn umr ums umu un- unb une uni unm unn unr uns unu unx ur- urb ure uri urm urn urr urs uru urx usb use usi usm usn usr uss usu usx uue uum uun uur uus uuu uxb uxr uxu xbe xbr xbx xee xem xen xer xes xeu xex xie xii xin xis xiu xix xmi xmm xmr xms xmu xmx xns xnu xrx xsb xsi xsm xss xue xui xun xus xxi xxx