-er -ey bbb bbe bbo bbr bbt bbx bby be- beb bee beo ber bet bex bey bob boe boo bor bot box boy brb bre bro brr brt brx bry btb bte bto btr btt btx bty bxb bxo bxx by- bye byo byr byt ebb ebe ebo ebr ebt ebx eby eeb eee eeo eer eet eex eey eo- eob eoe eoo eor eot erb ere ero err ert ery etb ete eto etr ett etx ety ex- exe exo exr ext exx exy eye eyo eyr eyt ob- obb obe obo obr obt obx oby oeb oee oeo oer oet oex oey oo- oob ooo oor oot oox or- orb ore oro orr ort orx ory ot- otb ote oto otr ott ox- oxb oxo oxt oxx oxy oye oyo rbb rbe rbo rbr rbt rbx re- reb ree reo rer ret rex rey rob roe roo ror rot rox roy rrb rrr rrt rtb rte rto rtr rtt rtx rty rxr ry- rye ryo ryr ryy t-x tbb tbe tbo tbr tbt te- teb tee teo ter tet tex tey to- tob toe too tor tot tox toy trb tre tro trr trt trx try ttb tte tto ttr ttt ttx tty txe txt tye tyo tyr tyt xbe xbr xbx xee xer xet xex xoo xor xot xox xrt xrx xry xtr xtx xty xxo xxx xxy xyr xyy ybe ybr yby yeb yee yeo yer yet yex yey yob yoe yoo yor yot yox yoy yre yro yrt yte yto ytr ytt yxe yxy yyb yye yyt yyy

bbbb bbeb bbet bbox bboy bbyo bebb bebe bebo beby beeb beer beet beey beo- beor beot bere bero berr bert bery bete beto bett beye beyt bobb bobe bobo boby boee boeo boer boet boey boob booe boor boot boox bor- bore boro borr bort bory botb bote boto bott boty boxy boye boyo breb bree breo brer bret brex brey brob broe broo bror brot brox brrr bry- brye bryo btex btob btor btrt btry bttb byer byob byre byrt byte ebbo ebbr ebby eber eboe eboo ebor ebox eboy ebro eeby eeee eero eery eete eext eore eoto er-x erbb erbe ereb erer eret erob eroe eroo erre erro erye eryx etbr etee eter etoe etox etoy etre etro ette etto etty exer exo- exor exrx exte extr exxy eyeb eyer eyet eyey eyot eyre eyry eyte eyyr o-eo obbo obby ober obet obex obey oboe obor obot obox oboy obre obro oere oeye oeyo oobe ooby ooer oooo oore oort oory ootb ooty orbb orbe orbo orby ore- oreb oreo orer orex orey oro- oroe oror orot oroy orro orry orte orto oryx otee oter oto- otoe otoo otor otoy otre otro otry otte otto otyr oxer oxo- oxox oxxo oxy- oyee oyer oyre rbbb rbbr rebb rebe rebo reeb reet reot rere rero rert rery rete reto retr rett rety rexx reye rob- robb robe robo robt roby roer roet roey roob roor root roox rore roro rort rory rote roto rotr rott roty roxo roxy roye royt rrrr rtee rtex rybe ryeb ryet ryob ryot rytt ryyt tbox tbrb tebo teer teet teor ter- tere tero terr tery tete teto tetr tett tetx text teye teyr to-y tobe tobo tobt toby toee toer toet toey toor toot tore toro torr tort torx tory tote toto totr tott toty tox- toxo toxt toyb toyo toyt tre- tree treo tret trex trey troe troo trot trox troy trte trtr try- tryb trye tryo ttbb tteo tter ttoe ttoy tttt txtr tybo tyee tyer tyet tyr- tyre tyro tyrr tyte tyto tytt tyty tyxt xbee xbox xeer xer- xero xert xexe xoro xote xoxo xoyo xtro xtry xxxo xxxx xxxy xyr- yber ybet ybor ybry yeer yeet yeot yeox yerb yere yero yerr yert yery yete yeto yett yext yeye yeyo yeyr yobo yoot yore yoro yort yory yote yott yoxe yoye yoyo ytre yyyy

-tree b-boy bbbee be-er be-ro beber bebot bebox beebe beeby beery beete beety beory beote berbe beret berey berob beroe beror berre berry berte berto berty beryx betee beter betoo betor betre bett- bette betto betty betyb beyer beyre beyte bo-bo bobby bobet bobr bobre bobry boero booby booer boore boort bootx booty booyo borbo boree borer boret borex borey boro- boroo borot borox borre borro botet botox botro botte botty botye boxbe boxee boxer boxey boxty boxxy boyer boyet boyey boyte bre-x breer breet breo- brere brery breto brett bretx breyr brobo broby broer broto broye brrrr bryo- bryt- btr-t by-by bybee bybox byrre byrte bytr- e-box e-boy ebber ebbet ebert eeeee eorre erbbe erber ereby erere eroor erore eroto errey error erte erter eryxo etete etext etoro etree etter exert exorb exore exort exter extre extro extry eyere eyeto eyrer o-r-b obbet obert obete oboro obory obote obreb obrey obyte oeyer oeyre oo-er ooooo orbey orbot oreo- orere orero orexo oreye orobe orobo oroer orret orrey orter ortet ortoo ortyx otere otero ototo otter ottey ottyr otyre oxeye oxter oyoor rebbe reber rebet rebox reere reorx rere- reree reret rerob retee reter retex retox retro retry rette retto rexer reyte ro-ro robbe robbo robby rober robey robo- robor robot roboy robrt robte roero rooer roore roote rooty rorer rorty roteb roter roto- rotor rotot rotox rotte rotto rotye roxby royer royet rtext rybee rytro rytte ryyty t-box t-rex tbtbt tbyte teber tebet tebey teety terby teret terex teror terre terro terry tert- teter tetex tetr- tetro tette tetty texor texte teyre to-be tobbe tober tobet tobey tobor tobot tobre toerr toeto toeye toobe tooby toore torbe toreo toret torey torob torre torro torry torte torto torty torxe toter totex toto- totoe totoo totte totty totyr toxey toxo- toyer toyte treer treet treey trere trete trett trety trexy treye troee trory trott troxy troye trxye trybe tryer tryor tryte tryto ttttt tybee tybor tyere tyree tyrer tyret tyro- tytte tyxte x-box xbxrx xerbo xero- xerox xerte xetex