-er -ol bbb bbd bbe bbl bbo bbr bbt bdb bdd bde bdl bdo bdr bdt be- beb bed bee bel beo ber bet blb bld ble bll blo blr blt bob bod boe bol boo bor bot brb brd bre brl bro brr brt btb btd bte btl bto btr btt dbb dbd dbe dbl dbo dbr dbt ddb ddd dde ddl ddo ddr ddt de- deb ded dee del deo der det dl- dlb dld dle dll dlo dlr dlt dob dod doe dol doo dor dot drb drd dre drl dro drr drt dtb dtd dte dtl dto dtr dtt ebb ebd ebe ebl ebo ebr ebt ed- edb edd ede edl edo edr edt eeb eed eee eel eeo eer eet elb eld ele ell elo elr elt eo- eob eod eoe eol eoo eor eot erb erd ere erl ero err ert etb etd ete etl eto etr ett lbb lbd lbe lbl lbo lbr lbt ldb ldd lde ldl ldo ldr ldt leb led lee lel leo ler let llb lld lle lll llo llr llt lob lod loe lol loo lor lot lrb lrd lro lrr lrt ltb ltd lte ltl lto ltr ltt ob- obb obd obe obl obo obr obt odb odd ode odl odo odr odt oeb oed oee oel oeo oer oet olb old ole oll olo olt oo- oob ood ool ooo oor oot or- orb ord ore orl oro orr ort ot- otb otd ote otl oto otr ott rbb rbd rbe rbl rbo rbr rbt rdb rdd rde rdl rdo rdr rdt re- reb red ree rel reo rer ret rld rle rll rlo rlr rlt rob rod roe rol roo ror rot rrb rrd rrl rrr rrt rtb rtd rte rtl rto rtr rtt tbb tbd tbe tbl tbo tbr tbt tdb tdd tde tdl tdo tdr tdt te- teb ted tee tel teo ter tet tld tle tll tlo tlr tlt to- tob tod toe tol too tor tot trb trd tre trl tro trr trt ttb ttd tte ttl tto ttr ttt

bbbb bbdd bbdo bbeb bbet bblb bd-r bdle bebb bebe bebo bede bedl bedo beeb beed beel beer beet beld bele bell belo belt beo- beod beor beot berd bere bero berr bert bete beto bett blbt bldr bleb bled blee bleo blet blob blod bloo blot bobb bobe bobo bodb bode bodo boee boel boeo boer boet bold bole boll bolo bolt boob bood booe bool boor boot bor- bord bore boro borr bort botb botd bote boto bott brdo brdt breb bred bree brel breo brer bret brob brod broe brol broo bror brot brrr btdt btob btor btrt bttb d-bo dbtt dddd ddot ddre debe debt dedd dede dedo deeb deed deel deer deet deld dele dell delo delt deol deor der- derb dere dero derr dete deto detr dlbd dobb dobe dobl dod- dodd dode dodo doel doer dold dole doll dolo dolt doob dood dool door doot dord dore doro dorr dort dotd dote doto dott dred dree drel dret drob drod drol drot dted dtle dtor dtot dtrl ebbo ebbr ebed ebel eber eboe ebol eboo ebor ebro edde eddo ede- edel eder edle edod eede eeee eele eero eete el-b elbe elbo elde eldr eled elee eleo eler elet elle ello elod elro elte elto eode eole eolo eore eorl eotd eoto erbb erbe erde ereb ered erel erer eret erld erle erll erob erod eroe erol eroo erre erro ertl etbr etee etel eter etoe etre etro ette etto lblr lbrt ldeo lebd lebo lede ledo ledt leed leel leer leet lele lell lelo leod leor lerd lere lero lert lete leto lett lldb llet llll llod lloo lob- lobb lobe lobo lode loeb lold lole loll lolo loob lood looe lool loor loot lord lore loro lotd lote lotl loto lotr lott lrdd lrrr ltbl ltee lttr o-eo obbo obdt obed obel ober obet oble oboe obol obor obot obre obro obtd odbo oddd oded odel odeo oder odet odle odoo odor odot odrl oedo oele oere olbo oldb olde ole- oled oleo oler olet olle ollo olor olot oobe ooer oold oolo oooo oord oore oort ootb orbb orbe orbo orde ordo ore- oreb ored orel oreo orer orle orlo oro- oroe oror orot orro orte orto otbd oted otee oter oto- otoe otoo otor otre otro otte otto rbbb rbbr rble rder rebb rebe rebo redd rede redl redo redr reeb reed reel reet relb reld rele rell relo relt reod reol reot rerd rere rero rert retd rete reto retr rett rldt rlee rob- robb robe robo robt rodd rode rodo roed roel roer roet rold role roll rolo rolt roob rood rool roor root rore roro rort rote rotl roto rotr rott rred rrle rrrr rtdt rtee rtle rtlt tbrb tddb tdor tebo tedd tede teed teel teer teet tel- teld tele tell telo telt teor ter- tere tero terr tete teto tetr tett tldr tobe tobo tobt todd tode todo todt toed toee toer toet tol- told tole toll tolo tolt tood tool toor toot tord tore toro torr tort totd tote toto totr tott tre- tred tree treo tret trod troe troo trot trte trtr ttbb tteo tter ttoe tttt

-tree b-e-d bbbee bd-re bdoor bdort be-er be-ro bebdo bebed bebel beber beblo bebod bebot bedde bedee bedel beder bedet bedle bedot beebe beede beeld beele beerd beete belbo belde beled belee belet bellb belle bello belot beode beord beote berbe berde bered berel beret berle berlo berob beroe berol beror berre berte berto betee betel beter betle betoo betor betre bett- bette betto bledd blede bleed bleer bleet blere blete blood bloor blorb blore blort blote bloto blott bo-bo bobet boble bobr bobre bodd- boded bodel boder bodle bodoe bodor boedo boeol boero bolbe boldo boldt boled bolel boleo boler bolet boll- bolle bollo bolte bolto boode booed booer boold boole boord boore boort borbo