-er bbb bbe bbg bbo bbr bbt bbw be- beb bee beg beo ber bet bew bgb bge bgg bgo bgr bgt bgw bob boe bog boo bor bot bow brb bre brg bro brr brt brw btb bte btg bto btr btt btw bwb bwg bwo bwr ebb ebe ebg ebo ebr ebt ebw eeb eee eeg eeo eer eet eew egb ege egg ego egr egt egw eo- eob eoe eog eoo eor eot eow erb ere erg ero err ert erw etb ete etg eto etr ett etw ewb ewe ewo ewr ewt eww gbe gbg gbo gbr gbt gbw ge- geb gee geg geo ger get gew ggb ggg ggo ggr ggt ggw gob goe gog goo gor got gow grb gre grg gro grr grt grw gtb gte gtg gto gtr gtt gtw gwb gwe gwg gwr gwt ob- obb obe obg obo obr obt obw oeb oee oeg oeo oer oet oge ogg ogo ogt oo- oob oog ooo oor oot oow or- orb ore org oro orr ort ot- otb ote otg oto otr ott otw owb owe owo owt oww rbb rbe rbg rbo rbr rbt rbw re- reb ree reg reo rer ret rew rgb rge rgg rgo rgr rgt rgw rob roe rog roo ror rot row rrb rrg rrr rrt rtb rte rtg rto rtr rtt rtw rwb rwe rwr tbb tbe tbg tbo tbr tbt te- teb tee teg teo ter tet tew tgb tge tgg tgo tgr tgt to- tob toe tog too tor tot tow trb tre trg tro trr trt trw ttb tte ttg tto ttr ttt ttw twb twe twg two twr twt tww wbb wbe wbg wbo wbr wbt wbw web wee weg weo wer wet wew wgb wgo wgr wgt wgw wob woe wog woo wor wot wow wr- wre wrg wro wrr wrt wrw wtb wto wtr wtt wtw wwe wwo wwt www

bbbb bbeb bbet bbrg bbwr bebb bebe bebo beeb beeg beer beet begg bego beo- beor beot bere berg bero berr bert bete beto bett betw bewe bgtw bobb bobe bobo bobw boee boeo boer boet boge bogg bogo bogt boob booe boog boor boot boow bor- bore borg boro borr bort borw botb bote boto bott botw bowe bowr bowt breb bree breg breo brer bret brew brob broe brog broo bror brot brow brrr brwe btob btor btrt bttb btwo bwog ebbo ebbr ebbw eber eboe eboo ebor ebow ebro eeee eerg eero eete egbe egee eger eggb egge eggo ego- egor egot egre egte eore eoto eotw erbb erbe ereb erer eret erew erg- ergg ergo erob eroe eroo erre erro erwt etbr etee eter etoe etre etro ette etto ewer ewew ewre ewte gbbo gbtw gebe geer geet gege gegg gego geo- geog gerb gere gero gert getb gete getg geto gett gewe ggbt gggg gobe gobo goer gogo goog goor goot gorb gore gorg goro gorr gort gote goto gott gowe gowt grbr greb gree greg gret grew grob grog groo gror grot grow grrr gtbr gtoe gwor gwtw gwwr o-eo obbo ober obet oboe obor obot obre obro oegb oere ogb ogbe ogee oger ogge ogog ogre ogro ogwr oobe ooer oooo oore oort ootb ootw orbb orbe orbo ore- oreb oreg oreo orer orge orgo oro- oroe oror orot orro orte orto orwe orwo otee oter oto- otoe otog otoo otor otow otre otro otte otto otwo ower owoe owow owre owt- owte owtt rbbb rbbr rebb rebe rebo reeb reet rege rego regr regt reog reot rere rerg rero rert rete reto retr rett rewe rgbe rgtr rob- robb robe robo robt roeg roer roet roge rogg rogo roob roog roor root rore roro rort rote rotg roto rotr rott rowb rowe rowr rowt roww rrrr rtee tbrb tebo teer teet tegg tego tegt teor teow ter- tere tero terr tete teto tetr tett tewo tobe tobo tobt toee toer toet toge togo togr togt toor toot tore torg toro torr tort tote toto totr tott towe tre- tree treg treo tret trew trge troe trog troo trot trow trte trtr trwe ttbb tteo tter ttoe tttt twbt twee twer two- twob twoo twot wbbb wbbe wbbg wbbo wbbr wbbt wbbw wbeb wber wbet wbew wbgb wbge wbgg wbgo wbgr wbgt wbgw wbob wbog wbor wbow wbrb wbrg wbrr wbrt wbrw wbte wbtg wbto wbtr wbtt wbtw wbwb wbwo wbwt webb webe webg webo webt weeb weeg weeo weer weet wegb wege wegg wego wegr wegw weog weow wer- werb were werg wero werr wert werw wetb wete weto wetr wett wewe wewo wgbb wgbg wgbr wgbt wgbw wgee wger wget wgge wggg wggo wgoe wgog wgow wgrb wgre wgro wgrr wgrt wgrw wgtb wgte wgto wgtr wgtt wgwb wgwe wgwg wgww wobb wobe wobg wobo wobt woer wogb wogg wogo wogr wogt woob woog woot woow worb wore worg woro worr wort worw wotb wote wotr wott wotw wowb wowe wowo wowt woww wrbb wrbe wrbg wrbo wrbt wrbw wreb wree wrer wret wrew wrgb wrgo wrgr wrgw wrob wrog wroo wrot wrow wrrb wrre wrro wrrw wrtb wrte wrtg wrto wrtr wrtw wrwb wrwr wtbb wtbg wtbo wtbr wtge wtgg wtgr wtob wtoe wtog wtor wtot wtow wtrb wtre wtrg wtro wtrt wtrw wttb wtte wttg wtto wttr wttt wttw wtwb wtwg wtwo wtwr wtwt wtww wwbb wwbg wwbr wwbt wweb wweg wweo wwer wwet wwgb wwge wwgo wwgr wwog wwor wwot wwow wwrb wwre wwrr wwrw wwtg wwtr wwtw wwwe wwwr wwww

-tree bbbee be-er be-ro beber bebog bebot beebe beete begee beget begge begob begor begot begto beote berbe bereg beret berge berob beroe beror berow berre berte berto berwe betee beter betoo betor betow betre bett- bette betto bewer bewet bewte bo-bo bobet bobr bobre boege boero boger boget bogge bogoe bogor bogot booer boore boort boowe borbo boree borer boret borge borgo boro- boroo borot borow borre borro borwe botet botew botro botte bower