-er bbb bbd bbe bbm bbr bbt bbx bdb bdd bde bdm bdr bdt bdx be- beb bed bee bem ber bet bex bmb bmd bme bmm bmr bmt bmx brb brd bre brm brr brt brx btb btd bte btm btr btt btx bxb bxd bxm bxx dbb dbd dbe dbm dbr dbt dbx ddb ddd dde ddm ddr ddt ddx de- deb ded dee dem der det dex dmb dmd dme dmm dmr dmt dmx drb drd dre drm drr drt drx dtb dtd dte dtm dtr dtt dtx dxd dxr dxt dxx ebb ebd ebe ebm ebr ebt ebx ed- edb edd ede edm edr edt edx eeb eed eee eem eer eet eex em- emb emd eme emm emr emt emx erb erd ere erm err ert etb etd ete etm etr ett etx ex- exd exe exr ext exx m-r mbb mbd mbe mbm mbr mbt mbx mdb mdd mde mdm mdr mdt mdx meb med mee mem mer met mex mmb mmd mme mmm mmr mmt mmx mrb mrd mre mrm mrr mrt mrx mtb mtd mte mtm mtr mtt mtx mxd mxr rbb rbd rbe rbm rbr rbt rbx rdb rdd rde rdm rdr rdt rdx re- reb red ree rem rer ret rex rmb rmd rme rmm rmr rmt rmx rrb rrd rrm rrr rrt rtb rtd rte rtm rtr rtt rtx rxr t-x tbb tbd tbe tbm tbr tbt tdb tdd tde tdm tdr tdt tdx te- teb ted tee tem ter tet tex tmb tmd tme tmm tmr tmt tmx trb trd tre trm trr trt trx ttb ttd tte ttm ttr ttt ttx txe txt xbe xbr xbx xdb xde xdm xdr xdt xed xee xem xer xet xex xmd xmm xmr xmt xmx xrd xrt xrx xtm xtr xtx xxx

bbbb bbdd bbeb bbet bd-r bdmx bdrm bebb bebe bede beeb beed beem beer beet beme berd bere berm berr bert bete bett bmdb brdm brdt breb bred bree brem brer bret brex brrm brrr btdt btex btrt bttb dbtt dddd ddre debe debt dedd dede deeb deed deem deer deet dem- demb demd deme der- derb dere derm derr dete detr dex- dexe dext dmdt dmrb dred dree drem dret dted dttx dtxt dxbe dxbm dxbr dxbt dxdr dxed dxme dxmr dxmt dxmx dxrd dxre dxrm dxrr dxrt dxrx dxxr dxxx ebbr ebed eber edde eddm ede- edem eder edex edme edrm eede eeee eete eext embd embe embr emdt emer emet emex emme emre emte er-x erbb erbe erde ereb ered erem erer eret erme erre etbr etee etem eter etre etrm ette exed exer exmr exrx exte extr mbdb mbed mddm mdme mdmx mebe medb medd mede meed meem meer meet meme memr memx mer- merb merd mere merm mert met- mete mett mexx mmdb mmdx mmmd mmmm mmxx mrbb mrbm mrdd mreb mred mree mrmd mrtm mrtt mtbd mtre mtrr mttr rbbb rbbr rbmx rdbm rder rebb rebe redd rede redr redx reeb reed reem reet reme rerd rere rert retd rete retr rett rexx rmxd rred rrrr rtdt rtee rtex tbrb tddb tedd tede tedm tedx teed teem teer teet teme ter- tere term terr tete tetr tett tetx text tmbr tmed tmtt tre- tred tree trem tret trex trmb trmd trte trtr ttbb tter tttt txtr x-ed xbee xdmx xeer xeme xer- xert xexe xmdr xrdb xxxx

-tree b-e-d bbbee bd-re be-er bebed beber bedde bedee beder bedet beebe beede beerd beete bembe bemer bemet berbe berde bered beret berme berre berte betee beter betre bett- bette bmxer bre-x bredd brede bredt breed breem breer breet breme bremm brerd brere brett bretx brmmm brrrr btr-d btr-t d-mer ddddd ddrmm debed deber debet debte dedde dedee deder deede deeme deere dembe demer demet demme demre derbe derde dered derm- derme derre deter detre dette drdre dredd drede dreed drere dxdxd e-dee e-med ebbed ebber ebbet ebert edder eddre edere edmed edred eeeee eerde embed embee ember emdex emede emeer emere emert emmer emmet emtee erbbe erber erdem erdre erede erem- erere erred erte erter etete etext etree etter exede exeem exeme exert exmet exred exter extre mbebe mbere mbret mebbe med-x medee medem meder meede meere meete membe memer memex merde mered merer meret merre merte meted meter metr- metre metrx mette mexer mmdxx mmmmm mrmet mrred mt-td mt-te mt-tm mt-tr mt-tt mtree rebbe reber rebet redbd redde redem reder redex reede reeme reere remed remee remer remet remex rerde rere- reree reret reted retee retem reter retex rette rexer rtext t-rex tbtbt teber tebet teder teeme teerd tembe temed terem teret terex terme terre tert- teter tetex tetr- tette texed texrd texte treed treer treet treme trere trete trett ttttt xbxrx xedre xerem xerte xetex xexex xmmer xterm xtext xtree

b-tree bbbbbb bedded bedder bedebt bedeem beebee beebem beedee beembe beemer beerde beerme beeter bembex bemeet bemerd bemete berbee berber berede bereet berere bermed bermet berrer berret bertem bertre beteem betere betete betted bettee better bexter bredde breded breder breede breere bremer brette d-term dbette de-err debdeb debere debert debete debret debted debtee deeded deedee deeder deemed deemer dem-me demdem demdex dememe demere derere dermer derrer determ deterr detete detext detmer detter dexter dextr- dextre dreder e-text ebbert edmede eebree embree emeere emeter emmert emmett erbree errett exeter m-tree mbembe mdr-tb meeder meeted meeter meetme meetre member membre mememe memere merete mermer mermet merrem merret merter met-rx meteer metred metrer metter mettet r-tree rebred redbed redded redder redeem redeme redere redred redted reeded reeder remede remeet remete reteed reteer reteet retere reterm retree retret retted retter t-tree tedded tedder tedmed teebee teeder teemed teemer teerme teetee teeter tembre temere terete termed termer terrer terret terrex terter tertre tetede tetete tetter texmex texted texter textme treder treete tremet tremex tretee trette x-tree xembed xerert xtreme

bbbbbbb beddred bedered beetred beetree berbere bereted berrett bertree betemme breeded breeder brember bremete bremmer brerded bx-tree debrete debrett deedeed demeter demetre derrett deterre dextrer drebber e-meter eddered