-er b-u bbb bbc bbe bbm bbr bbt bbu bcb bcc bce bcm bcr bct bcu be- beb bec bee bem ber bet beu bmb bmc bme bmm bmr bmt bmu brb bre brm brr brt bru btb btc bte btm btr btt btu bub buc bue bum bur but buu c-- cbb cbc cbe cbm cbr cbt cbu ccb ccc cce ccm ccr cct ccu ce- ceb cec cee cem cer cet ceu cmb cmc cme cmm cmr cmt cmu crb crc cre crm crr crt cru ctb ctc cte ctm ctr ctt ctu cub cuc cue cum cur cut cuu ebb ebc ebe ebm ebr ebt ebu ec- ecb ecc ece ecm ecr ect ecu eeb eec eee eem eer eet em- emb emc eme emm emr emt emu erb erc ere erm err ert eru etb etc ete etm etr ett etu eu- eub euc eue eur eut m-r mbb mbc mbe mbm mbr mbt mbu mc- mcb mcc mce mcm mcr mct mcu meb mec mee mem mer met meu mmb mmc mme mmm mmr mmt mmu mrb mrc mre mrm mrr mrt mru mtb mtc mte mtm mtr mtt mtu mub muc mue mum mur mut muu rbb rbc rbe rbm rbr rbt rbu rcb rcc rce rcm rcr rct rcu re- reb rec ree rem rer ret reu rmb rmc rme rmm rmr rmt rrb rrc rrm rrr rrt rru rtb rtc rte rtm rtr rtt rtu rub ruc rue rum rur rut ruu tbb tbc tbe tbm tbr tbt tbu tcb tcc tce tcm tcr tct tcu te- teb tec tee tem ter tet teu tmb tmc tme tmm tmr tmt tmu trb trc tre trm trr trt tru ttb ttc tte ttm ttr ttt ttu tub tuc tue tum tur tut tuu ubb ubc ube ubr ubt ubu ucb ucc uce ucm ucr uct ucu ueb uec uee uem uer uet um- umb umc ume umm umr umt umu ur- urb urc ure urm urr urt uru utb utc ute utm utr utt utu uuc uue uum uur uut uuu

bbbb bbcm bbeb bbet bbrc bcbc bccc bccm bcec bcer bcet bcru bctc bcuc bebb bebe becu beeb beem beer beet beme bemu berc bere berm berr bert beru betc bete bett betu beur bmce bmtc brcb brce breb brec bree brem brer bret brmc brrm brrr brtc bruc brue brum brut btcc btec btrc btrt bttb bubb bube bubu bucc buce bucu buem buer bueu bum- bumb bur- burb bure burm burr burt buru but- bute butt cbbc cbcc cbce cbcm cbcr cbct cbcu cbec cbee cber cbet cbme cbre cbrm cbrt cbtc ccbc cccb cccc cccm cccu ccee ccmb ccmc ccmm ccrc ccre ccrt cctb cctc cctt ccuc ccut cebu cec- cece cecm cect ceeb ceec ceem cemb ceme cemm cemr cemu cer- cerc cere cert cet- cete cmbc cmcc cmec cmmb cmmc cmrr cmtc cmtu crbc crbu crcc crce crcr cre- creb crec cree crem cret creu crmb crrt crtc crtm crub crue crum crut ctec ctrc ctrm cub- cubb cube cucc cuce cucm cuer cum- cume cumt curb cure curr curt cut- cutc cute cutt ebbc ebbr ebcc eber ebru ebur ecbc ecbe eccb eccc ecce eccm ecct ecem ecrc ecrm ecrr ecru ect- ectc eeee eerc eetc eete eetu embe embr emcc emer emet emeu emme emmu emre emte erbb erbe ercc erce ereb erec erem erer eret ermc erme errc erre ertu erub eruc erum erur etbc etbr etcc etec etee etem eter etre etrm ette ettu eubc euer eumc eur- eurc eure eurt mcbc mccc mcmc mcmt mcrc mctc mctu mebe mec- mecc mece mecr meem meer meet memc meme memr memu mer- merb merc mere merm mert meru met- mete mett metu meum mmcc mmcm mmct mmmc mmmm mmrc mr-c mrbb mrbm mrcb mrcc mrce mreb mree mrmc mrrc mrtm mrtt mtbc mtcr mtrc mtre mtrr mttr mtuc mube muc- mucc muce mucu muee muet mume mumm mumu murc mure murr murt muru mute mutt mutu muut rbbb rbbr rcbc rccb rccc rcet rctc rebb rebe rebu recc rece recm recr rect recu reeb reem reet reme rere rert reru rete retr rett reue reut reuu rmtu rrmc rrrr rrum rtcc rtce rtcm rtee rtmc rubb rube rubu ruce ruct ruer ruet rumb rume rumm rumt rurc rure ruru rute rutt rutu tbcb tbcc tbce tbrb tccc tccu tctc tebu tecr tect teec teem teer teet teme temu ter- terc tere term terr teru tete tetr tett tetu teut tmbc tmbr tmcc tmcm tmtt trcc tre- trec tree trem tret treu trmb trmu trtc trte trtr trub truc true trut truu ttbb tter tttt tubb tube tubr tubu tucc tuer tuet tumb tume tumu turb turc ture turm turr turt turu tute tutt tutu tuum ubbe uber ubet ucbc ucmc ucrc ucut umb- umbe umec umer umet umut urbe ure- uret urre urte urum urur urut utec uter utmb uttu uuuu

-tree bbbee be-er beber becue becum becut beebe beete beeut bembe bemer bemet berbe bercu berec beret berme berre berru berte berum betee beter betre bett- bette beuer beure beute brebu brece breem breer breet breme bremm brere brett breu- brmmm brrrr bruce bruer bruet brume brumm brute btc-e btr-t bubbe buber bucet bucum bucur bumbu bumme burcu buret burru burte burtt buruc burut butec buter butme butte butut c-met c-tec ccccc ccett cebec ceber cecum ceere cemec cemre cerbu cerc- cerce cerec cerer ceret cerre certe cetme cette cmere crebe crece creem creer creme crete cretu creu- creue cruce cruet crumb crume crure ctcum ctree cttee cubbe cubeb cuber cubub cumbe cumbu cumec cumm- curce curer curet curre cutcu cutee cuter ebber ebbet ebert ebure ecume eeeee eembc eemct embee ember embue emcee emeer emere emert emmer emmet emtec emtee emure erbbe erber erect erem- erere errtu erte erter eruct etete etree etter eturu eucre eum-u eurre mbcet mbebe mbere mbret mbube mburu mcbee mccue mcree mcube mebbe mecum meece meemu meere