opto orbb orbe orbo orbu orce orco ore- oreb orec oreg orem oreo orer orge orgo orme ormo oro- oroe orom oror orot orpc orpe orro ortc orte orto orub orum orup otee otem otep oter oto- otoe otog otoo otor otpp otre otro otte otto ottu otur oucc ouer ouge oume oupe our- oure ouro ourt out- outb oute outo ouu- pbcc pbgc pbmr pboc pcbc pcbm pccc pcce pcem pcep pcer pcgg pcgm pcmb pcoe pcom pcpb pcpm pcpp pcrc pcre pcte pece peco pecr pect peec peep peer peet pegg pegm pego pegu pemt peor peou pepe pepo per- perc pere perg perm pero perp perr pert peru pete peto petr pett peur peut pgcc pgce pger pgmc pgmp pgou pgpu pgrc pgup pmbr pmcc pmeg pmmp pmmu pmpm pmpo pmrc pmrt pmut pobo poce poco poem poer poet poge pogg pogo pome pomo pomp pomu poop poor poot pop- popc pope popo popp popt porb porc pore porg poro porr port potc pote poto pott potu poum poup pour pout ppcc ppcm pper pppo pppp pprc pprm ppru pptt ppur prbc prcc prcp pre- preb prec pree preg prem prep pret preu prmc pro- prob proc proe prog prom proo prop prot prou prrm prtc prtm prtp prtr prue prum prut pruu ptcc pter ptmp ptop pttc pu-e pube pubu puce pueo puer puet pueu pugo pugu pume pump pupe pupu pur- purb pure purg puro purp purr puru put- pute puto putt putu puuc rbbb rbbr rcbc rcbo rccb rccc rcep rcet rcgc rcmp rcpo rcpt rcrg rctc rctg rebb rebe rebo rebu recc rece recm recp recr rect recu reeb reem reep reet rege regm rego regr regt regu reme remo remp reog reop reot reou repe repo repp repr rept repu rere rerg rero rert reru rete reto retr rett reue reup reut reuu rgbe rgtr rmrg rmrp rmtu rob- robb robe robo robt robu rocc roce roco roeg roer roet roge rogg rogo romb rome romm romo romp roob roog room roop roor root rope ropo rorc rore roro rort roru rotc rote rotg roto rotr rott roub roue roum roup rout rpet rpob rpoe rrmc rrmp rrrr rrum rtcc rtce rtcg rtcm rtee rtmc rtmp rttp rubb rube rubp rubu ruce ruct ruer ruet ruge rugg rumb rume rumm rumo rump rumt rupe rupp rupt rurc rure ruro rurp ruru rute ruto rutt rutu t-mo tbcb tbcc tbce tbrb tbtp tccc tccu tcep tcom tcpo tctc tebo tebu teco tecr tect teec teem teer teet tegg tego tegt tegu teme temo temp temu teom teor tepe tepp tepu ter- terc tere term tero terp terr teru tete teto tetr tett tetu teut tgcc tgtc tmbc tmbg tmbr tmcc tmcm tmep tmge tmou tmro tmtt tobe tobo tobt tobu toce toco toee toer toet toge togo togr togt tomb tome tomg tomm tomo tomp tomt toom toor toot top- tope topo topp topt topu torc tore torg torm toro torp torr tort toru totc tote totm toto totr tott toug toum toup tour tout tpbg tpcp tpeg tper tpmt tppp tppr tpte tptp tptr tput trcc tre- trec tree treg trem treo tret treu trge trmb trmu troc troe trog trom troo trop trot trou trpc trpe trpg trpm trpp trtc trte trtr trub truc true trug trut truu ttbb ttcp tteo tter ttoe ttop tttt tubb tube tubo tubr tubu tucc tuco tuer tuet tugg tugu tumb tume tump tumu tuor tupe tupo tupu turb turc ture turg turm turo turp turr turt turu tute tuto tutt tutu tuum tuuo u-rp ubbe ubbo uber ubet uboc ubpc ucbc uccp ucmc ucom ucpb ucrc ucut ugcc ugcg ugeo ugep uggo uggt ugro ugur uguu umb- umbe umbo umec umer umet umgo ummg ummo umoe umor umpc umpe umpg umut uocc uomo uor- uore upbe upgo upmc upme upor uppc uppe uppp uppu upto upup urbe ure- uret urge urgu uro- urom uroo urpo urre urte urum urup urur urut utec utep uter utmb utmp utor utto uttu utug uucp uuoc uuuu

-tree bbbee bccup be-er be-ro beber bebog bebop bebot becco becue becum becut beebe beete beeut begee begem beget begge begob begor begot begto begue begum begur begut bembe bembo bemco bemer bemet beote beour bepop beppe beppo beppu berbe bercu berec bereg beret berge berme bermo berob beroe berom beror berre berru berte berto berum betee beter betoo betor betou betre bett- bette betto beuer beure beute bgmut bmp-r bo-bo bobet boboc bobr bobre bobup bocce bocet bocom bocor boece boege boeme boero boeur boger boget bogge bogoe bogor bogot bogu bogue bogur bogut bombe bombo bomer bomet bomme booce booco booer boomb boore boort booru bopet borbo borce borec boree borer boret borge borgo borgu bormo boro- borom boroo borot borou borre borro borum borup borut botet botme botom botou botro botte bottu bouce bouee bouer bouet bouge boure bourg boute bouto brebu brece breem breer breet breg- brege bregg breme bremm bremo breo- breoc brere breto brett breu- brmmm brobo broce broer brom- brome bromo broom broto broue brout brrrr bruce bruer bruet bruge brugg brume brumm brute btc-e btr-t bubbe buber bucco buceo bucet bucum bucur buger bugge bugoo bugre bumbo bumbu bumme bumpe bumpo burcu buret burge burgo burgu buroo burro burru burte burtt buruc burut butec buteo buter butme buto- butor butot butou butte butuo butut c-cor c-met c-p-c c-pop c-tec ccccc ccett cebec ceber cebgo cebpb cebpe cebpg ceco- cecum ceere cegep cegge cemec cemmo cemre ceoce ceoor cepet cepot ceppo cerbu cerc- cerce cerco cerec cerer ceret cerge cero- ceroc cerou cerre cerro certe cetme ceto- cette cmere co-bo co-co co-op cobbe cobot cobre cobue cocc- cocce cocco coceo cocom cocto cocum cocur coepe coete coeur cogue combe combo comco comec comer comet comme commo commr comot compo compt comte comu- cooee cooer coomb coome coope coopt coore coorg coote copce copec coper coppe coppo copr- copre copro copte copto copur coput corbe