-er -ol bbb bbe bbl bbo bbr bbt be- beb bee bel beo ber bet bjj bjr bjt blb ble blj bll blo blr blt bob boe boj bol boo bor bot brb bre brj brl bro brr brt btb bte btl bto btr btt ebb ebe ebj ebl ebo ebr ebt eeb eee eel eeo eer eet ejl ejo ejt elb ele ell elo elr elt eo- eob eoe eol eoo eor eot erb ere erl ero err ert etb ete etj etl eto etr ett jbj jbl jbo jbr jbt jeb jee jej jel jeo jer jet jjb jjj jjl jjr jlb jle jll jlo jlr jlt job joe joj jol joo jor jot jrb jrl jro jrr jrt jtb jte jtl jtr jtt lbb lbe lbj lbl lbo lbr lbt leb lee lej lel leo ler let lje ljj llb lle llj lll llo llr llt lob loe loj lol loo lor lot lrb lro lrr lrt ltb lte ltl lto ltr ltt ob- obb obe obj obl obo obr obt oeb oee oel oeo oer oet ojb oje ojo olb ole oll olo olt oo- oob ool ooo oor oot or- orb ore orl oro orr ort ot- otb ote otl oto otr ott rbb rbe rbl rbo rbr rbt re- reb ree rel reo rer ret rjr rle rll rlo rlr rlt rob roe roj rol roo ror rot rrb rrl rrr rrt rtb rte rtj rtl rto rtr rtt tbb tbe tbj tbl tbo tbr tbt te- teb tee tej tel teo ter tet tje tjo tjr tle tlj tll tlo tlr tlt to- tob toe toj tol too tor tot trb tre trl tro trr trt ttb tte ttl tto ttr ttt

bbbb bbeb bbet bblb bebb bebe bebo beeb beej beel beer beet bele bell belo belt beo- beor beot bere bero berr bert bete beto bett blbt bleb blee bleo blet blob bloo blot bobb bobe bobo boee boel boeo boer boet bojo bojt bole boll bolo bolt boob booe bool boor boot bor- bore borj boro borr bort botb bote boto bott breb bree brel breo brer bret brje brob broe brol broo bror brot brrr btob btor btrt bttb ebbo ebbr ebel eber eboe ebol eboo ebor ebro eeee eele eero eete ejer ejob ejoo ejot el-b elbe elbo elee eleo eler elet elle ello elro elte elto eole eolo eore eorl eoto erbb erbe ereb erel erer eret erle erll erob eroe erol eroo erre erro ertl etbr etee etel eter etoe etre etro ette etto j-ro jbel jbob jebb jebe jeel jeer jeet jell jeol jere jero jert jetb jete jetl jett jobe jobo joee joel jojo jole joll jolo jolt jool joor joot jore jorl joro jort joto jott jrbr jtol lblr lbrt lebo leej leel leer leet lele lell lelo leor lere lero lert lete leto lett ljeb llet llll lloo lob- lobb lobe lobo loeb loje lojo lole loll lolo loob looe looj lool loor loot lore loro lote lotl loto lotr lott lrrr ltbl ltee lttr o-eo obbo obel ober obet oble oboe obol obor obot obre obro oele oere olbo ole- oleo oler olet olle ollo olor olot oobe ooer oolo oooo oore oort ootb orbb orbe orbo ore- oreb orel oreo orer orle orlo oro- oroe oror orot orro orte orto otee oter oto- otoe otoo otor otre otro otte otto rbbb rbbr rble rebb rebe rebo reeb reel reet relb rele rell relo relt reol reot rere rero rert rete reto retr rett rlee rob- robb robe robo robt roel roer roet roje rojo role roll rolo rolt roob rool roor root rore roro rort rote rotj rotl roto rotr rott rrle rrrr rtee rtle rtlt tbrb tebo teej teel teer teet tejo tel- tele tell telo telt teor ter- tere terj tero terr tete teto tetr tett tobe tobo tobt toee toer toet tojo tol- tole tolj toll tolo tolt tool toor toot tore toro torr tort tote toto totr tott tre- tree treo tret troe troo trot trte trtr ttbb tteo tter ttoe tttt

-tree bbbee be-er be-ro bebel beber beblo bebot beebe beele beete bejel bejte belbo belee belej belet bellb belle bello belot beote berbe berel beret berle berlo berob beroe berol beror berre berte berto betee betel beter betle betoo betor betre bett- bette betto bleer bleet blere blete bloor blorb blore blort blote bloto blott bo-bo bobet boble bobr bobre boeol boero bojer bolbe bolel boleo boler bolet boll- bolle bollo bolte bolto booer boole boore boort borbo boree borel borer boret borje borle boro- boroo borot borre borro botel botet botro botte breel breer breet brejo brell brelo breo- brere breto brett brobo broer broje brole broll brolo brool broto brrrr btr-t ebber ebbet ebble ebell ebelo eberl ebert eeeee eeler ejler elbot eleet elele eleo- eleot ellel eller ellet elloe eloee elole eloor elore eloro elote elrob eltro eorre erbbe erber erere eroor erore eroto errol error erte ertel erter etete etoll etool etoro etree ettel etter ettle jebel jebet jelle jello jelot jeroo jerre jerte jetee jeter jette jetto jobbe joe-e joell jolle jollo jooto joree jorel jotto lebel leber lebet leell leere leert lejre lelle lerer lerot letbe letot letre lette letto lobbe lobbo lober loble lobo- lobor lojer loler lollo lolol looer loore loote lorel loreo lorer loret lorre lotor lotte lotto o-r-b obbet obejo obele obert obete objet obole obolo oboro obote obreb oelet oerel oerje oerle oleo- olere olleo oller oltet oltre oo-er ooooo orble orbot orell oreo- orere orero orlet orlje orobe orobo oroer orret orter ortet ortoo otell otelo otere otero otole otolo ototo otter rebbe rebel reber rebet rebol reere rejto relee relet rello relot relte rere- reree reret rerob retee retel reter retje retro rette retto ro-ro robbe robbo rober roble robo- robor robot robrt robte roell roero roleo rolle rollo rooer roole roore roote rorer roteb rotel roter rotle roto- rotol rotor