-er b-u bbb bbe bbo bbr bbt bbu be- beb bee beo ber bet beu bjj bjr bjt bju bob boe boj boo bor bot bou brb bre brj bro brr brt bru btb bte bto btr btt btu bub bue buj buo bur but buu ebb ebe ebj ebo ebr ebt ebu eeb eee eeo eer eet ejo ejt eju eo- eob eoe eoo eor eot eou erb ere ero err ert eru etb ete etj eto etr ett etu eu- eub eue euj eur eut jbj jbo jbr jbt jbu jeb jee jej jeo jer jet jeu jjb jjj jjr jju job joe joj joo jor jot jou jrb jro jrr jrt jtb jte jtr jtt jtu jub jue juo jur jut ob- obb obe obj obo obr obt obu oeb oee oeo oer oet ojb oje ojo oju oo- oob ooo oor oot or- orb ore oro orr ort oru ot- otb ote oto otr ott otu ou- oue ouo our out rbb rbe rbo rbr rbt rbu re- reb ree reo rer ret reu rjr rob roe roj roo ror rot rou rrb rrr rrt rru rtb rte rtj rto rtr rtt rtu rub rue ruo rur rut ruu tbb tbe tbj tbo tbr tbt tbu te- teb tee tej teo ter tet teu tje tjo tjr tju to- tob toe toj too tor tot tou trb tre tro trr trt tru ttb tte tto ttr ttt ttu tub tue tuj tuo tur tut tuu ubb ube ubo ubr ubt ubu ueb uee uer uet ujo uob uoe uoj uoo uor uot ur- urb ure uro urr urt uru utb ute utj uto utr utt utu uue uur uut uuu

bbbb bbeb bbet bebb bebe bebo beeb beej beer beet beo- beor beot bere bero berr bert beru bete beto bett betu beur bobb bobe bobo bobu boee boeo boer boet bojo bojt boju boob booe boor boot bor- bore borj boro borr bort boru botb bote boto bott boue bour bout breb bree breo brer bret brje brob broe broo bror brot brou brrr brue brut btob btor btrt bttb bubb bube bubo bubu buer bueu buje bujo buju bur- burb bure burj buro burr burt buru but- bute buto butt ebbo ebbr eber eboe eboo ebor ebro ebru ebur eeee eero eete eetu ejer ejob ejoo ejot eore eoto erbb erbe ereb erer eret erob eroe eroo erre erro ertu erub erur etbr etee eter etoe etre etro ette etto ettu euer eur- eure euro eurt j-ro jbob jebb jebe jeer jeet jeju jere jero jert jeru jetb jete jett jeur jobe jobo jobu joee jojo joor joot jore joro jort joto jott jour jrbr jube jubu juju jure jurr jute o-eo obbo ober obet oboe obor obot obre obro oere ojeu oobe ooer oooo oore oort ootb orbb orbe orbo orbu ore- oreb oreo orer oro- oroe oror orot orro orte orto orub oruj otee oter oto- otoe otoo otor otre otro otte otto ottu otur ouer ouju our- oure ouro ourt out- outb oute outo ouu- rbbb rbbr rebb rebe rebo rebu reeb reet reot reou rere rero rert reru rete reto retr rett reue reut reuu rob- robb robe robo robt robu roer roet roje rojo roob roor root rore roro rort roru rote rotj roto rotr rott roub roue rout rrrr rtee rubb rube rubu ruer ruet rure ruro ruru rute ruto rutt rutu tbrb tebo tebu teej teer teet tejo teju teor ter- tere terj tero terr teru tete teto tetr tett tetu teut tobe tobo tobt tobu toee toer toet tojo toor toot tore toro torr tort toru tote toto totr tott tour tout tre- tree treo tret treu troe troo trot trou trte trtr trub true trut truu ttbb tteo tter ttoe tttt tubb tube tubo tubr tubu tuer tuet tuor turb ture turo turr turt turu tute tuto tutt tutu tuuo ubbe ubbo uber ubet uor- uore urbe ure- uret uro- uroo urre urte urur urut uter utor utto uttu uuuu

-tree bbbee be-er be-ro beber bebot beebe beete beeut bejou bejte beote beour berbe beret berob beroe beror berre berru berte berto betee beter betoo betor betou betre bett- bette betto beuer beure beute bo-bo bobet bobr bobre boero boeur bojer booer boore boort booru borbo boree borer boret borje boro- boroo borot borou borre borro borut botet botou botro botte bottu bouee bouer bouet boure boute bouto brebu breer breet brejo breo- brere breto brett breu- brobo broer broje broto broue brout brrrr bruer bruet brujo brute btr-t bubbe buber bujeo bujor bujru buret buroo burro burru burte burtt burut buteo buter buto- butor butot butou butte butuo butut ebber ebbet ebert eboue ebure eeeee ejure eorre erbbe erber erere eroor erore eroto error errtu erte erter etete etoro etour etree etter eturu eubro eujet euro- eurre jebet jeetu jejur jeroo jerre jerte jetee jeter jette jetto jetut jeure jobbe joe-e jooto joree jotto jotur joure joute jouto ju-ju jubbe jubeb jubet jubur jueju juror juter jutro juuru o-r-b obbet obejo obert obete objet oboro obote oboue obout obreb oerje ojuju oo-er ooooo orbot oreo- orere orero orobe orobo oroer orout orret orter ortet ortoo orube orujo oruro orutu otere otero ototo otour otter ottur oture oubut ouert ouoro oure- outer outjo outre outro outto rebbe reber rebet rebut reere rejto rere- reree reret rerob retee reter retje retro rette retto reuer reuet reute ro-ro robbe robbo rober robo- robor robot robrt robte robur roero rooer roore roote rooue rorbu rorer roteb roter roto- rotor rotot rotte rotto roubt rouer rouet roure route routt rtejr rubee ruber rubor ruere ruete ruter rutte ruutu tbtbt tbutt teber tebet teret tereu terje teror terre terro tert- teruo teter tetr- tetro tette teuto tjebu tjore to-be tobbe tober tobet tobor tobot tobou tobre toerr toeto toobe toore torbe toreo toret torje torob torre torro torte torto tortu torue toter toto- totoe totoo totte toure touro toute treer