-er b-u bbb bbe bbm bbn bbr bbs bbu be- beb bee bem ben ber bes beu bev bmb bme bmm bmn bmr bms bmu bmv bnb bne bnn bnr bns bnu bnv brb bre brm brn brr brs bru brv bsb bse bsm bsn bsr bss bsu bsv bub bue bum bun bur bus buu bvb bve bvm bvn bvr bvs bvu bvv ebb ebe ebm ebn ebr ebs ebu ebv eeb eee eem een eer ees eev em- emb eme emm emn emr ems emu emv en- enb ene enm enn enr ens enu env erb ere erm ern err ers eru erv es- esb ese esm esn esr ess esu esv eu- eub eue eun eur eus euv evb eve evm evn evr evs evv m-r m-v mbb mbe mbm mbr mbs mbu mbv meb mee mem men mer mes meu mev mmb mme mmm mmn mmr mms mmu mmv mnb mne mnm mnn mnr mns mnu mrb mre mrm mrn mrr mrs mru mrv msb mse msm msn msr mss msu msv mub mue mum mun mur mus muu mvb mve mvm mvn mvr mvs mvv nbb nbe nbm nbn nbr nbs nbu nbv ne- neb nee nem nen ner nes neu nev nmb nme nmm nmn nmr nms nmu nnb nne nnm nnn nns nnu nnv nrb nre nrm nrn nrr nrs nru nrv nsb nse nsm nsn nsr nss nsu nsv nub nue num nun nur nus nuu nuv nvb nve nvm nvn nvu nvv rbb rbe rbm rbn rbr rbs rbu re- reb ree rem ren rer res reu rev rmb rme rmm rmn rmr rms rmv rnb rnm rnn rnr rns rnu rnv rrb rrm rrn rrr rrs rru rsb rse rsm rsn rsr rss rsu rsv rub rue rum run rur rus ruu ruv rvb rve rvm rvn rvr rvs rvu rvv sbb sbe sbm sbn sbr sbs sbu sbv se- seb see sem sen ser ses seu sev smb sme smm smn smr sms smu smv snb sne snm snn snr sns snu snv sr- srb sre srm srn srr srs srv ss- ssb sse ssm ssn ssr sss ssu ssv sub sue sum sun sur sus suu suv svb sve svm svn svr svs svu svv ubb ube ubn ubr ubs ubu ubv ueb uee uem uen uer ues um- umb ume umm umn umr ums umu un- unb une unm unn unr uns unu unv ur- urb ure urm urn urr urs uru usb use usm usn usr uss usu usv uue uum uun uur uus uuu uvb uve uvm uvs uvu uvv v-e vbm vbr vbs vbv veb vee vem ven ver ves veu vm- vmm vmn vmr vmu vn- vnm vnr vns vnu vnv vrb vre vrm vrn vrr vrs vru vsb vse vsm vsn vsr vss vsu vsv vue vum vur vus vuv vvb vvm vvr vvs vvv