bbbb bbeb bbet bbox bbwr bebb bebe bebo beeb beer beet beo- beor beot bere bero berr bert bete beto bett betw bewe bobb bobe bobo bobw boee boeo boer boet boob booe boor boot boow boox bor- bore boro borr bort borw botb bote boto bott botw bowe bowr bowt breb bree breo brer bret brew brex brob broe broo bror brot brow brox brrr brwe btex btob btor btrt bttb btwo ebbo ebbr ebbw eber eboe eboo ebor ebow ebox ebro eeee eero eete eext eore eoto eotw er-x erbb erbe ereb erer eret erew erob eroe eroo erre erro erwt etbr etee eter etoe etox etre etro ette etto ewer ewew ewre ewte exer exo- exor exrx exte extr o-eo obbo ober obet obex oboe obor obot obox obre obro oere oobe ooer oooo oore oort ootb ootw orbb orbe orbo ore- oreb oreo orer orex oro- oroe oror orot orro orte orto orwe orwo otee oter oto- otoe otoo otor otow otre otro otte otto otwo ower owoe owow owre owt- owte owtt oxer oxo- oxox oxxo rbbb rbbr rebb rebe rebo reeb reet reot rere rero rert rete reto retr rett rewe rexx rob- robb robe robo robt roer roet roob roor root roox rore roro rort rote roto rotr rott rowb rowe rowr rowt roww roxo rrrr rtee rtex tbox tbrb tebo teer teet teor teow ter- tere tero terr tete teto tetr tett tetx tewo text tobe tobo tobt toee toer toet toor toot tore toro torr tort torx tote toto totr tott towe tox- toxo toxt tre- tree treo tret trew trex troe troo trot trow trox trte trtr trwe ttbb tteo tter ttoe tttt twbt twee twer two- twob twoo twot txtr wbbb wbbe wbbo wbbr wbbt wbbw wbbx wbeb wber wbet wbew wbex wbob wbor wbow wbox wbrb wbrr wbrt wbrw wbrx wbte wbto wbtr wbtt wbtw wbtx wbwb wbwo wbwt wbwx wbxb wbxe wbxr wbxx webb webe webo webt weeb weeo weer weet weex weow wer- werb were wero werr wert werw wetb wete weto wetr wett wewe wewo wexe wexr wext wexx wobb wobe wobo wobt wobx woer woob woot woow worb wore woro worr wort worw worx wotb wote wotr wott wotw wotx wowb wowe wowo wowt woww woxe woxo woxr woxx wrbb wrbe wrbo wrbt wrbw wrbx wreb wree wrer wret wrew wrex wrob wroo wrot wrow wrox wrrb wrre wrro wrrw wrrx wrtb wrte wrto wrtr wrtw wrwb wrwr wrxb wrxo wrxw wrxx wtbb wtbo wtbr wtbx wtob wtoe wtor wtot wtow wtox wtrb wtre wtro wtrt wtrw wtrx wttb wtte wtto wttr wttt wttw wtwb wtwo wtwr wtwt wtww wtxr wtxt wtxx wwbb wwbr wwbt wweb wweo wwer wwet wwor wwot wwow wwox wwrb wwre wwrr wwrw wwrx wwtr wwtw wwtx wwwe wwwr wwww wwwx wxbb wxbe wxbt wxbw wxbx wxer wxew wxex wxow wxox wxrb wxro wxrr wxrt wxrx wxtb wxtr wxtt wxtx wxxb wxxx xbee xbow xbox xeer xeew xer- xero xert xexe xoro xote xoxo xtro xxxo xxxx