-er -th bbb bbe bbg bbh bbo bbr bbt be- beb bee beg beh beo ber bet bgb bge bgg bgh bgo bgr bgt bhb bhe bhg bhh bho bhr bht bob boe bog boh boo bor bot brb bre brg brh bro brr brt btb bte btg bth bto btr btt ebb ebe ebg ebh ebo ebr ebt eeb eee eeg eeo eer eet egb ege egg egh ego egr egt ehb ehe ehg ehh eho ehr eht eo- eob eoe eog eoh eoo eor eot erb ere erg erh ero err ert etb ete etg eth eto etr ett gbe gbg gbh gbo gbr gbt ge- geb gee geg geh geo ger get ggb ggg ggh ggo ggr ggt ghb ghe ghg ghh gho ghr ght gob goe gog goh goo gor got grb gre grg grh gro grr grt gtb gte gtg gth gto gtr gtt hbb hbe hbg hbh hbo hbr hbt he- heb hee heg heh heo her het hgb hge hgg hgh hgo hgr hgt hhb hhe hhg hhh hho hhr hht hob hoe hog hoh hoo hor hot hr- hrb hre hrg hrh hro hrr hrt htb hte htg hth hto htr htt ob- obb obe obg obh obo obr obt oeb oee oeg oeh oeo oer oet oge ogg ogh ogo ogt ohe ohg ohh oho ohr oht oo- oob oog ooh ooo oor oot or- orb ore org orh oro orr ort ot- otb ote otg oth oto otr ott rbb rbe rbg rbh rbo rbr rbt re- reb ree reg reh reo rer ret rgb rge rgg rgh rgo rgr rgt rh- rhb rhe rhg rhh rho rhr rht rob roe rog roh roo ror rot rrb rrg rrh rrr rrt rtb rte rtg rto rtr rtt tbb tbe tbg tbh tbo tbr tbt te- teb tee teg teh teo ter tet tgb tge tgg tgh tgo tgr tgt th- thb the thg thh tho thr tht to- tob toe tog toh too tor tot trb tre trg trh tro trr trt ttb tte ttg tth tto ttr ttt

bbbb bbeb bbet bbrg bebb bebe bebo beeb beeg beer beet begg bego behr beo- beor beot bere berg bero berr bert bete beth beto bett bght bher bhet bhog bhor bhot bhrt bobb bobe bobo boee boeo boer boet boge bogg bogh bogo bogt boho bohr boht boob booe boog booh boor boot bor- bore borg borh boro borr bort botb bote both boto bott breb bree breg breo brer bret brob broe brog broh broo bror brot brrr btob btor btrt bttb ebbo ebbr eber eboe eboo ebor ebro eeee eerg eero eete eeth egbe egee eger eggb egge eggh eggo eghe eghh ego- egor egot egre egte eheh eher ehre ehte eore eoto erbb erbe ereb erer eret erg- ergg ergh ergo erob eroe eroo erre erro erth etbr etee eter eth- ethe etho etoe etoh etre etro ette etto gbbo gebe geer geet gege gegg gego geht geo- geog gerb gere gero gert getb gete getg geth geto gett ggbt gggg gghg ghee gheg gobe gobo goer gogh gogo gohb goog goor goot gorb gore gorg goro gorr gort gote goth goto gott grbr greb gree greg gret grob grog groh groo gror grot grrr gtbr gtoe hebb hebe hebo hebr heeb heeg heer heet hege hegg hegh hego hehe heho heor herb here herg hero herr hert hete heth heto hett hhgg hhhh hobe hobo hoer hoge hogg hogh hogo hohe hoho hooe hoor hoot hore horg horo horr hort hotb hote hoth hoto hotr hott hree hrob hrtb hrte htet htoh httr o-eo obbo ober obet oboe obor obot obre obrh obro oegb oere ogb ogbe ogee oger ogge oght ogog ogre ogro ohbe ohee oher ohgr ohho ohob ohoh ohre ohte ohto oobe ooer ooho oooh oooo oore oort ootb orbb orbe orbo ore- oreb oreg oreh oreo orer orge orgo orhe oro- oroe oror orot orro orte orth orto otee oter othe otho othr oto- otoe otog otoh otoo otor otre otro otte otto rbbb rbbr rbgh rboh rebb rebe rebo reeb reet rege rego regr regt rehb rehe reht reog reot rere rerg rero rert rete reth reto retr rett rgbe rgtr rhbg rheb rhee rheo rhet rhob rhog rhoh rob- robb robe robo robt roeg roer roet roge rogg rogh rogo rohe rohr roob roog roor root rore roro rort rote rotg roth roto rotr rott rrrr rtee tbrb tebo teer teet tegg tegh tego tegt teho tehr teoh teor ter- tere tero terr tete teth teto tetr tett the- theb thee theo ther thet thoe thog thoo thor thot thre thro thtb thtr tobe tobo tobt toee toeh toer toet toge togh togo togr togt toho tooh toor toot tore torg toro torr tort tote toth toto totr tott tre- tree treg treo tret trge troe trog troo trot trte trtr ttbb tteo tter ttoe tttt

-tree bbbee be-er be-ro beber bebog bebot beebe beete beeth begee beget begge begob begor begot begto beher behet behot beote beoth berbe bereg bereh beret berge bergh 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 boege boero boger boget bogge boghe boght bogoe bogor bogot bohge bohor bohot bohte booer boore boort booth borbo boree borer boret borge borgh borgo boro- boroo borot borre borro borth botet bothe botro botte breer breet breg- brege bregg breo- brere breth breto brett brobo broer brogh broth broto brrrr btr-t ebber ebbet eberg ebert eeeee egger egret ehret eorre erbbe erber erege erere ergo- ergot eroge eroor erore eroto error erte erter erthe etete ether etho- etoro etree etrog etter gberg geber gebet gebre gee-h geebo geere geert geete gegge gehee georg gerbe gerbo gerre gerth gertt getee geter getgo gethe getho gette getto gheet ghore go-go go-oo go-to gobbe gobbo gobeo gobet gobot goehr goeth goget goght gogro