-er b-u bbb bbe bbg bbm bbn bbr bbs bbu be- beb bee beg bem ben ber bes beu bgb bge bgg bgm bgn bgr bgs bgu bmb bme bmg bmm bmn bmr bms bmu bnb bne bng bnn bnr bns bnu brb bre brg brm brn brr brs bru bsb bse bsg bsm bsn bsr bss bsu bub bue bug bum bun bur bus buu ebb ebe ebg ebm ebn ebr ebs ebu eeb eee eeg eem een eer ees egb ege egg egm egn egr egs egu em- emb eme emg emm emn emr ems emu en- enb ene eng enm enn enr ens enu erb ere erg erm ern err ers eru es- esb ese esg esm esn esr ess esu eu- eub eue eug eun eur eus gbe gbg gbm gbn gbr gbs gbu ge- geb gee geg gem gen ger ges geu ggb ggg ggm ggn ggr ggs ggu gmb gme gmg gmm gmn gmr gms gnb gne gnm gnn gnr gns gnu grb gre grg grm grn grr grs gru gsb gse gsg gsm gsn gsr gss gsu gu- gub gue gug gum gun gur gus guu m-r mbb mbe mbg mbm mbr mbs mbu meb mee meg mem men mer mes meu mgb mge mgm mgn mgr mgs mgu mmb mme mmg mmm mmn mmr mms mmu mnb mne mng mnm mnn mnr mns mnu mrb mre mrg mrm mrn mrr mrs mru msb mse msg msm msn msr mss msu mub mue mug mum mun mur mus muu nbb nbe nbg nbm nbn nbr nbs nbu ne- neb nee neg nem nen ner nes neu ngb nge ngg ngm ngn ngs ngu nmb nme nmg nmm nmn nmr nms nmu nnb nne nng nnm nnn nns nnu nrb nre nrg nrm nrn nrr nrs nru nsb nse nsg nsm nsn nsr nss nsu nub nue nug num nun nur nus nuu rbb rbe rbg rbm rbn rbr rbs rbu re- reb ree reg rem ren rer res reu rgb rge rgg rgn rgr rgs rmb rme rmg rmm rmn rmr rms rnb rng rnm rnn rnr rns rnu rrb rrg rrm rrn rrr rrs rru rsb rse rsg rsm rsn rsr rss rsu rub rue rug rum run rur rus ruu sbb sbe sbg sbm sbn sbr sbs sbu se- seb see seg sem sen ser ses seu sgb sge sgg sgm sgn sgr sgs sgu smb sme smg smm smn smr sms smu snb sne sng snm snn snr sns snu sr- srb sre srg srm srn srr srs ss- ssb sse ssg ssm ssn ssr sss ssu sub sue sug sum sun sur sus suu ubb ube ubg ubn ubr ubs ubu ueb uee ueg uem uen uer ues ugb uge ugg ugm ugn ugr ugs ugu um- umb ume umg umm umn umr ums umu un- unb une ung unm unn unr uns unu ur- urb ure urg urm urn urr urs uru usb use usg usm usn usr uss usu uue uug uum uun uur uus uuu