-er bbb bbc bbe bbm bbr bbt bcb bcc bce bcm bcr bct be- beb bec bee bem ber bet bmb bmc bme bmm bmr bmt brb bre brm brr brt btb btc bte btm btr btt c-- cbb cbc cbe cbm cbr cbt ccb ccc cce ccm ccr cct ce- ceb cec cee cem cer cet cmb cmc cme cmm cmr cmt crb crc cre crm crr crt ctb ctc cte ctm ctr ctt ebb ebc ebe ebm ebr ebt ec- ecb ecc ece ecm ecr ect eeb eec eee eem eer eet em- emb emc eme emm emr emt erb erc ere erm err ert etb etc ete etm etr ett m-r mbb mbc mbe mbm mbr mbt mc- mcb mcc mce mcm mcr mct meb mec mee mem mer met mmb mmc mme mmm mmr mmt mrb mrc mre mrm mrr mrt mtb mtc mte mtm mtr mtt rbb rbc rbe rbm rbr rbt rcb rcc rce rcm rcr rct re- reb rec ree rem rer ret rmb rmc rme rmm rmr rmt rrb rrc rrm rrr rrt rtb rtc rte rtm rtr rtt tbb tbc tbe tbm tbr tbt tcb tcc tce tcm tcr tct te- teb tec tee tem ter tet tmb tmc tme tmm tmr tmt trb trc tre trm trr trt ttb ttc tte ttm ttr ttt

bbbb bbcm bbeb bbet bbrc bcbc bccc bccm bcec bcer bcet bctc bebb bebe beeb beem beer beet beme berc bere berm berr bert betc bete bett bmce bmtc brcb brce breb brec bree brem brer bret brmc brrm brrr brtc btcc btec btrc btrt bttb cbbc cbcc cbce cbcm cbcr cbct cbec cbee cber cbet cbme cbre cbrm cbrt cbtc ccbc cccb cccc cccm ccee ccmb ccmc ccmm ccrc ccre ccrt cctb cctc cctt cec- cece cecm cect ceeb ceec ceem cemb ceme cemm cemr cer- cerc cere cert cet- cete cmbc cmcc cmec cmmb cmmc cmrr cmtc crbc crcc crce crcr cre- creb crec cree crem cret crmb crrt crtc crtm ctec ctrc ctrm ebbc ebbr ebcc eber ecbc ecbe eccb eccc ecce eccm ecct ecem ecrc ecrm ecrr ect- ectc eeee eerc eetc eete embe embr emcc emer emet emme emre emte erbb erbe ercc erce ereb erec erem erer eret ermc erme errc erre etbc etbr etcc etec etee etem eter etre etrm ette mcbc mccc mcmc mcmt mcrc mctc mebe mec- mecc mece mecr meem meer meet memc meme memr mer- merb merc mere merm mert met- mete mett 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 rbbb rbbr rcbc rccb rccc rcet rctc rebb rebe recc rece recm recr rect reeb reem reet reme rere rert rete retr rett rrmc rrrr rtcc rtce rtcm rtee rtmc tbcb tbcc tbce tbrb tccc tctc tecr tect teec teem teer teet teme ter- terc tere term terr tete tetr tett tmbc tmbr tmcc tmcm tmtt trcc tre- trec tree trem tret trmb trtc trte trtr ttbb tter tttt

-tree bbbee be-er beber beebe beete bembe bemer bemet berbe berec beret berme berre berte betee beter betre bett- bette brece breem breer breet breme bremm brere brett brmmm brrrr btc-e btr-t c-met c-tec ccccc ccett cebec ceber ceere cemec cemre cerc- cerce cerec cerer ceret cerre certe cetme cette cmere crebe crece creem creer creme crete ctree cttee ebber ebbet ebert eeeee eembc eemct embee ember emcee emeer emere emert emmer emmet emtec emtee erbbe erber erect erem- erere erte erter etete etree etter mbcet mbebe mbere mbret mcbee mcree mebbe meece meere meete membe memer merce merer meret merre merte meter metr- metre mette mmccc mmmcc mmmmm mrmet mt-tc mt-te mt-tm mt-tr mt-tt mtree rebbe rebec reber rebet recce recet rect- recte reece reeme reere remee remer remet rere- reree reret retee retem reter rette tbtbt teber tebet tectb teeme tembe terce terem teret terme terre tert- teter tetr- tette treer treet treme trere trete trett ttttt

b-tree bbbbbb beebee beebem beembe beemer beerme beeter bemeet bemete berbee berber bereet berere bermet berrer berret bertem bertre beteem betere betete bettee better breere bremer brette ceecee cerete cermet creete cremec cremer ebbert eebree eerect embree emeere emeter emmert emmett erbree errett etcetc m-tree mbembe mccree mcteer meeter meetme meetre member membre mememe memere mercer merece merete mermer mermet merrem merret merter meteer metrer metter mettet r-tree rebbec remeet remete retece reteer reteet retere reterm retree retret retter t-tree teebee teemer teerme teetee teeter tembec tembre temere tercer tercet terete termer terrer terret terter tertre tetete tetter tr-rec trebce treece treete tremet tretee trette

bbbbbbb beetree berbere berrett bertree betemme brember bremete bremmer cerbere cerebr- cert-ee cremett e-meter eemmeer emebert erecter memmert mereret merrett mertert metreme metrete r-meter reerect rembert remeber remerce reteere reterre retrete rettert tec-mec tec-tec terere terreer terrere tettete treetee trettre

bbbbbbbb bebetter berebere betterer bremette embetter erembert etbetter meercere meremere recetter remember remembre tremembe

beebeebee emmermeer mcemcemce tebe-tebe

betterbeer cerre-tree mememememe mettembert rememberer rememberme

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