-er -th bbb bbe bbh bbo bbr bbt bbx be- beb bee beh beo ber bet bex bhb bhe bhh bho bhr bht bhx bob boe boh boo bor bot box brb bre brh bro brr brt brx btb bte bth bto btr btt btx bxb bxo bxx ebb ebe ebh ebo ebr ebt ebx eeb eee eeo eer eet eex ehb ehe ehh eho ehr eht eo- eob eoe eoh eoo eor eot erb ere erh ero err ert etb ete eth eto etr ett etx ex- exe exh exo exr ext exx hbb hbe hbh hbo hbr hbt hbx he- heb hee heh heo her het hex hhb hhe hhh hho hhr hht hob hoe hoh hoo hor hot hox hr- hrb hre hrh hro hrr hrt htb hte hth hto htr htt htx ob- obb obe obh obo obr obt obx oeb oee oeh oeo oer oet oex ohe ohh oho ohr oht oo- oob ooh ooo oor oot oox or- orb ore orh oro orr ort orx ot- otb ote oth oto otr ott ox- oxb oxo oxt oxx rbb rbe rbh rbo rbr rbt rbx re- reb ree reh reo rer ret rex rh- rhb rhe rhh rho rhr rht rob roe roh roo ror rot rox rrb rrh rrr rrt rtb rte rto rtr rtt rtx rxr t-x tbb tbe tbh tbo tbr tbt te- teb tee teh teo ter tet tex th- thb the thh tho thr tht thx to- tob toe toh too tor tot tox trb tre trh tro trr trt trx ttb tte tth tto ttr ttt ttx txe txt xbe xbr xbx xee xer xet xex xht xoo xor xot xox xrt xrx xtr xtx xxo xxx

bbbb bbeb bbet bbox bebb bebe bebo beeb beer beet behr beo- beor beot bere bero berr bert bete beth beto bett bher bhet bhor bhot bhrt bobb bobe bobo boee boeo boer boet boho bohr boht boob booe booh boor boot boox bor- bore borh boro borr bort botb bote both boto bott breb bree breo brer bret brex brob broe broh broo bror brot brox brrr btex btob btor btrt bttb ebbo ebbr eber eboe eboo ebor ebox ebro eeee eero eete eeth eext eheh eher ehre ehte eore eoto er-x erbb erbe ereb erer eret erob eroe eroo erre erro erth etbr etee eter eth- ethe etho etoe etoh etox etre etro ette etto exer exh- exo- exor exrx exte extr hbox hebb hebe hebo hebr heeb heer heet hehe heho heor herb here hero herr hert hete heth heto hett hex- hexb hexe hext hhex hhhh hobe hobo hoer hohe hoho hooe hoor hoot hoox hore horo horr hort hotb hote hoth hoto hotr hott hree hrob hrtb hrte htet htoh httr o-eo obbo ober obet obex oboe obor obot obox obre obrh obro oere ohbe ohee oher ohho ohob ohoh ohre ohte ohto oobe ooer ooho oooh oooo oore oort ootb orbb orbe orbo ore- oreb oreh oreo orer orex orhe oro- oroe oror orot orro orte orth orto otee oter othe otho othr oto- otoe otoh otoo otor otre otro otte otto oxer oxo- oxox oxxo rbbb rbbr rboh rebb rebe rebo reeb reet rehb rehe reht reot rere rero rert rete reth reto retr rett rexx rheb rhee rheo rhet rhex rhob rhoh rob- robb robe robo robt roer roet rohe rohr roob roor root roox rore roro rort rote roth roto rotr rott roxo rrrr rtee rtex tbox tbrb tebo teer teet teho tehr teoh teor ter- tere tero terr tete teth teto tetr tett tetx text the- theb thee theo ther thet thex thoe thoo thor thot thre thro thtb thtr tobe tobo tobt toee toeh toer toet toho tooh toor toot tore toro torr tort torx tote toth toto totr tott tox- toxo toxt tre- tree treo tret trex troe troo trot trox trte trtr ttbb tteo tter ttoe tttt txtr xbee xbox xeer xer- xero xert xexe xoro xote xoth xoxo xtro xxxo xxxx

-tree bbbee be-er be-ro beber bebot bebox beebe beete beeth beher behet behot beote beoth berbe bereh beret berhe berob beroe beror berre berte berth berto betee beter bethe betoo betor betre bett- bette betto bheer bhoot bhore bo-bo bo-ho bobet bobr bobre boero bohor bohot bohte booer boore boort booth bootx borbo boree borer boret borex boro- boroo borot borox borre borro borth botet bothe botox botro botte boxbe boxee boxer bre-x breer breet breo- brere breth breto brett bretx brobo broer broth broto brrrr btr-t e-box ebber ebbet ebert eeeee ehret eorre erbbe erber erere eroor erore eroto error erte erter erthe etete etext ether etho- etoro etree etter exert exhex exorb exore exort exter extre extro h-e-b he-he he-ro hebbe hebe- heber heere heete hehte heore heroe herre herro herte herth herto heter hethe hette hetto hexer hheth hhhhh ho-ho ho-oh hobet hobex hoboe hobor hobro hohoe hohot hooer hoore hoort horeb horex horhe horre horro horth horto hothe hothr hotot hotte hotto hrere hthrt htree o-r-b obbet obert obete obhor oboro obote oboth obreb oerth oh-oh ohbot ohrob ohrot ohthe oo-er ooher ooooh ooooo oothe orbot oreo- orere orero orexo orobe orobo oroer orret orter ortet orth- orthe ortho ortoo otere otero other othre ototo otter oxter rebbe reber rebet rebox reere reerh reeth reher rehet rehoe reorx rere- reree reret rerob retee reter retex rethe retox retro rette retto rexer rheo- rhett rhoeo ro-ro robbe robbo rober robo- robor robot robrt robte roero rohob rooer roore roote rorer roteb roter rothe rotho roto- rotor rotot rotox rotte rotto rtext t-box t-rex tbtbt teber tebet teeth tehee teret terex teror terre terro tert- teter tetex tethe tetr- tetro tette texor texte thebe theeb theer theex theo- theor theox ther- there thero thete theth thexx thobe thore thoro thorr thort thoth thre- three threo thret throb throe throo throt to-be to-ho tobbe tobeh tober tobet tobor tobot tobre toerr toeto toher tohoe tohot toobe