-er bbb bbe bbo bbr bbs bbt be- beb bee beo ber bes bet bez bob boe boo bor bos bot boz brb bre bro brr brs brt brz bsb bse bso bsr bss bst btb bte bto btr bts btt btz bze bzo bzr bzs bzz ebb ebe ebo ebr ebs ebt eeb eee eeo eer ees eet eo- eob eoe eoo eor eos eot erb ere ero err ers ert erz es- esb ese eso esr ess est etb ete eto etr ets ett etz eze ezo ezr ezs ezz ob- obb obe obo obr obs obt oeb oee oeo oer oes oet oo- oob ooo oor oos oot or- orb ore oro orr ors ort orz os- osb ose oso osr oss ost ot- otb ote oto otr ots ott otz oze ozo ozs ozt ozz rbb rbe rbo rbr rbs rbt re- reb ree reo rer res ret rez rob roe roo ror ros rot roz rrb rrr rrs rrt rsb rse rso rsr rss rst rtb rte rto rtr rts rtt rtz rzb rze rzo sbb sbe sbo sbr sbs sbt se- seb see seo ser ses set sez sob soe soo sor sos sot soz sr- srb sre sro srr srs srt ss- ssb sse sso ssr sss sst ssz stb ste sto str sts stt stz sze szr tbb tbe tbo tbr tbs tbt tbz te- teb tee teo ter tes tet tez to- tob toe too tor tos tot toz trb tre tro trr trs trt trz tsb tse tso tsr tss tst ttb tte tto ttr tts ttt tze tzs zbb zbr zbs zbt zeb zee zeo zer zes zet zez zo- zob zoe zoo zor zos zot zro zrs zse zst zsz zte ztr zzr zzs zzt zzz

-ose bbbb bbbs bbeb bbet bebb bebe bebo beeb beer bees beet beo- beor beos beot bere bero berr bers bert bes- bese beso bess best bete beto bets bett betz beze bobb bobe bobo bobs boee boeo boer boes boet boob booe boor boos boot booz bor- bore boro borr bors bort borz bose boso boss bost botb bote boto bots bott bozo breb bree breo brer bres bret brez brob broe broo bror bros brot broz brrr brrs brsb brsr brst bseb bsee bser bses bset bsos bsse bsts btob btor btrt btss bttb bzer bzoe bzzt bzzz ebbo ebbr ebbs eber ebes eboe eboo ebor ebos ebro eeee eees eero eers eese eete eets eeze eoes eore eost eoto eots erbb erbe ereb erer eres eret erez erob eroe eroo eros erre erro errs erse erso erst erts ertz esbo esbs esee eseo eser eses eset eso- esos esse esso esst este esto estr ests etbr etee eter etes etoe etos etre etro ette etto ezer ezzo o-eo obbo ober obes obet oboe obor obos obot obre obro obsr obss obst obts oere oers oese oest oetz oobe ooer ooes oooo ooos oore oort oose oost ootb oots ooze orbb orbe orbo orbs ore- oreb oreo orer ores oro- oroe oror oros orot oroz orro orrs orse orso orte orto orts orzo osbe osee oser oses oset osez osoo osor osos osro ossb osse osso oste ostr osts otbs otee oter otes oto- otoe otoo otor otos otre otro otrs otse otso otte otto otts ozee ozer ozet rbbb rbbr rbbs rbss rbst rebb rebe rebo rebs reeb rees reet reos reot rere rero rers rert rese reso ress rest rete reto retr rets rett retz reze rob- robb robe robo robs robt roer roes roet roob roor roos root rooz rore roro rort rose roso ross rost rote roto rotr rots rott roze rozz rrrr rsee rsos rsre rsts rtee rtes rtss rtts s-os sbbs sber sbor sbot sbse sbst se-e se-o se-s se-t se-z sebe sebo sebs sebt seeb seer sees seet seez serb sere sero serr sers sert sese seso sess sest set- sete seto sets sett setz sobe sobo sobr sobs sobt soeo soes soor soos soot sorb sore soro sorr sors sort sose soso soss sost sote soto sots soz- soze sreb sreo sres sros srtr ssbr ssee sses sset ssot ssrs sssb ssss sstb ssts stbs stee steo ster stes stet stob stoe stoo stor stos stot stre stro strs stss sttr szob szot szss tbbs tbrb tbst tebo teer tees teet teez teor teos teoz ter- tere tero terr ters tese teso tess test tete teto tetr tets tett tetz tezz tobe tobo tobs tobt toee toer toes toet toor toos toot tore toro torr tors tort tosb tose toso toss tost tote toto totr tots tott toze tozo tre- tree treo tres tret trez troe troo tros trot trst trte trtr tses tset tsez tsob tsos tsse tssr tsst tsts ttbb tteo tter ttoe ttss tttt tzzt z-ro zber zebe zees zeos zero zert zest zete zeto zeze zobo zoes zoet zoo- zoos zoot zorb zore zoro zors zort zoso zoss zote zots zott zotz zozo zrze zsss ztst zzzs zzzz

-tree bbbee bbser be-er be-ro beber bebes bebot beebe beebs beers beest beete beets beez beost beote berbe beres beret berob beroe beror berre berse berte berto berts berze berzo besee beset besob besos besot besse besso beste bests betee beter betes betoo betor betre betrs betso bett- bette betto betts bezer bezes bezos bo-bo bobet bobos bobr bobre bobst bobts boero boers boese boets boobs booer boore boors boort boose boost boots booze borbo boree borer bores boret boro- boroo boros borot borre borro borse borst borts bortz boset bosor bosse bosso boste botes botet botez botos botro botte botts bozer bozoo bozos breer brees breet breo- brere brers brese bress brest breto brets brett bretz breze brobo brobs broer broos brose bross broto broze brrrr btr-t bzots bzzzt ebber ebbet ebers ebert eboes eeeee eeros eorre eoste erbbe erber erebs erere erest erets eretz eroes eroor eroos erore erose eross eroto erres error erses ersoz erste ersts erte