-er b-u bbb bbe bbn bbo bbr bbt bbu be- beb bee ben beo ber bet beu bnb bne bnn bno bnr bnt bnu bob boe bon boo bor bot bou brb bre brn bro brr brt bru btb bte btn bto btr btt btu bub bue bun buo bur but buu ebb ebe ebn ebo ebr ebt ebu eeb eee een eeo eer eet en- enb ene enn eno enr ent enu eo- eob eoe eon eoo eor eot eou erb ere ern ero err ert eru etb ete etn eto etr ett etu eu- eub eue eun eur eut nbb nbe nbn nbo nbr nbt nbu ne- neb nee nen neo ner net neu nnb nne nnn nno nnt nnu no- nob noe non noo nor not nou nrb nre nrn nro nrr nrt nru ntb nte ntn nto ntr ntt ntu nub nue nun nuo nur nut nuu ob- obb obe obn obo obr obt obu oeb oee oen oeo oer oet on- onb one onn ono onr ont onu oo- oob oon ooo oor oot or- orb ore orn oro orr ort oru ot- otb ote otn oto otr ott otu ou- oue oun ouo our out rbb rbe rbn rbo rbr rbt rbu re- reb ree ren reo rer ret reu rnb rnn rno rnr rnt rnu rob roe ron roo ror rot rou rrb rrn rrr rrt rru rtb rte rtn rto rtr rtt rtu rub rue run ruo rur rut ruu tbb tbe tbn tbo tbr tbt tbu te- teb tee ten teo ter tet teu tnb tne tnn tno tnr tnt to- tob toe ton too tor tot tou trb tre trn tro trr trt tru ttb tte ttn tto ttr ttt ttu tub tue tun tuo tur tut tuu ubb ube ubn ubo ubr ubt ubu ueb uee uen uer uet un- unb une unn uno unr unt unu uob uoe uon uoo uor uot ur- urb ure urn uro urr urt uru utb ute utn uto utr utt utu uue uun uur uut uuu

-ene -one bbbb bbeb bbet bebb bebe bebo beeb been beer beet bene benn beno bent benu beo- beon beor beot bere bern bero berr bert beru bete beto bett betu beur bner bnet bnor bnrr bobb bobe bobo bobu boee boen boeo boer boet bone bonn bono bont bonu boob booe boon boor boot bor- bore born boro borr bort boru botb bote botn boto bott boue boun bour bout breb bree bren breo brer bret brno brob broe bron broo bror brot brou brrr brue brun brut bten btob btor btrt bttb bubb bube bubo bubu buen buer bueu bunb bune bunn buno bunt bunu buon bur- burb bure burn buro burr burt buru but- bute buto butt ebbo ebbr eben eber ebno eboe ebon eboo ebor ebro ebru ebur eeee eent eero eete eetu enb- enbn enbr enee eneo ener enne ennu eno- enoe enon ent- ente ento entr enue enur enut eone eont eore eoto erbb erbe ereb eren erer eret erne erno erob eroe eron eroo erre erro ertu erub erur etbr etee eten eter etne etnr etoe eton etre etro ette ettn etto ettu etun euer eur- eure euro eurt nbbo nber nebb nebe nebn nebo nebr nebu neeb neen neer neet nene neno nent nenu neo- neon neoo neot nere nero nerr nert neru net- netb nete neto nett neue neun neuo neur neut neuu nnnn nnot nntn nobo nobu noer non- none nonn nono nont nonu noo- noob noon nooo noor noot nor- norb nore norn noro norr nort not- note noto nott noun nour nout nren nron nter nteu ntnu ntru ntto nttr nube nuee nuer nune nunn nuno nunt nuon nure nurn nurr nurt nuru nute nutt nutu o-eo obbo oben ober obet oboe obon obor obot obre obro oen- oeno oere one- oneb onee oneo oner onne onno onon onor ont- onto onue onur onut oobe ooer oone oont oooo oore oort ootb orbb orbe orbo orbu ore- oreb oren oreo orer orne orno oro- oroe oron oror orot orro orte orto orub otee oten oter oto- otoe oton otoo otor otre otro otte otto ottu otur ouen ouer oun- oune our- oure ourn ouro ourt out- outb oute outo ouu- rbbb rbbr rebb rebe rebo rebu reeb reen reet rene renn reno rent renu reot reou rere rero rert reru rete reto retr rett reue reut reuu rnbr rnnt rnot rnut rob- robb robe robo robt robu roen roer roet rone rono ront roob roon roor root rore roro rort roru rote rotn roto rotr rott roub roue roun rout rrrr rrun rtee rubb rube rubu ruen ruer ruet rune runn runo runt rure ruro ruru rute ruto rutt rutu ruun tbrb tebo tebu teen teer teet tenb tene tenn teno tent tenu teon teor ter- tere tern tero terr teru tete teto tetr tett tetu teut tneb tnut tobe tobo tobt tobu toee toen toer toet tonb tone tonn tono tonu toon toor toot tore torn toro torr tort toru tote toto totr tott toun tour tout tre- tree tren treo tret treu trno troe tron troo trot trou trte trtr trub true trun trut truu ttbb tten tteo tter ttoe tton tttt tubb tube tubo tubr tubu tuen tuer tuet tunb tune tunn tuno tunu tuor turb ture turn turo turr turt turu tute tuto tutt tutu tuuo ubbe ubbo uber ubet ubon ueno unbe uneb unee unen uner unne unno unon unro untb unte unto unut uone uor- uore urbe ure- uret urne uro- uroo urre urte urun urur urut uter utne utor utto uttu uuen uuno uuuu

-tree bbbee be-er be-ro beber bebot beebe beene beete beeut bene- benet benne benno bennu benon benot bento benue benun benur benut beone beorn beote beour berbe beren beret berne berno bernt berob beroe beror berre berru berte berto berun betee beten beter betne beton betoo betor betou betre bett- bette betto beuer