-er b-p bbb bbe bbg bbp bbr bbs bbt be- beb bee beg bep ber bes bet bgb bge bgg bgp bgr bgs bgt bpb bpe bpg bpp bpr bps bpt brb bre brg brp brr brs brt bsb bse bsg bsp bsr bss bst btb bte btg btp btr bts btt ebb ebe ebg ebp ebr ebs ebt eeb eee eeg eep eer ees eet egb ege egg egp egr egs egt ep- epb epe epg epp epr eps ept erb ere erg erp err ers ert es- esb ese esg esp esr ess est etb ete etg etp etr ets ett g-p gbe gbg gbp gbr gbs gbt ge- geb gee geg gep ger ges get ggb ggg ggp ggr ggs ggt gpb gpe gpg gpp gpr gps gpt grb gre grg grp grr grs grt gsb gse gsg gsp gsr gss gst gtb gte gtg gtp gtr gts gtt p-p pbb pbe pbg pbp pbr pbs pbt peb pee peg pep per pes pet pgb pge pgg pgp pgr pgs pgt ppb ppe ppg ppp ppr pps ppt prb pre prg prp prr prs prt ps- psb pse psg psp psr pss pst pt- ptb pte ptg ptp ptr pts ptt rbb rbe rbg rbp rbr rbs rbt re- reb ree reg rep rer res ret rgb rge rgg rgp rgr rgs rgt rpb rpe rpg rpp rpr rps rpt rrb rrg rrp rrr rrs rrt rsb rse rsg rsp rsr rss rst rtb rte rtg rtp rtr rts rtt sbb sbe sbg sbp sbr sbs sbt se- seb see seg sep ser ses set sgb sge sgg sgp sgr sgs sgt spb spe spg spp spr sps spt sr- srb sre srg srp srr srs srt ss- ssb sse ssg ssp ssr sss sst stb ste stg stp str sts stt tbb tbe tbg tbp tbr tbs tbt te- teb tee teg tep ter tes tet tgb tge tgg tgp tgr tgs tgt tpb tpe tpg tpp tpr tps tpt trb tre trg trp trr trs trt tsb tse tsg tsp tsr tss tst ttb tte ttg ttp ttr tts ttt

bbbb bbbs bbeb bbet bbpr bbrg bebb bebe beeb beeg beep beer bees beet begg begs bere berg berr bers bert bes- bese bess best bete bets bett bggs bgst breb bree breg brep brer bres bret brrr brrs brsb brsr brst bseb bsee bseg bser bses bset bsgs bspp bspr bsse bsts btbp btps btrt btss bttb ebbr ebbs eber ebes eeee eees eegs eeps eerg eers eese eete eets egbe egee eger eggb egge eggp eggs egpb egpe egre egss egte egts epee eper epes eppp epps eprb eprp eprs epsp epss epte erbb erbe ereb erer eres eret erg- ergg ergs erpe erps erre errs erse erst erts esbs esee eser eses eset espe espp esps esse essg essp esst este estp estr ests etbr etee eter etes etre ette gbbs gebe geep geer gees geet gege gegg gepe gerb gere gers gert gesg gess gest getb gete getg gets gett ggbt gggg ggss gper gpgp gprp gprs gpsg gpss grbr greb gree greg grep gres gret grps grrr grrs grss gspt gsse gstr gtbr pbrs pbsp peep peer pees peet pegg pegs pepe peps per- pere perg perp perr pers pert pese pess pest pete petr pets pett pger pgss pper pppp ppps ppss ppts pptt prbs pre- preb pree preg prep pres pret prgs prps prrs prse prss prtp prtr psbr psbt pseb pseg psgr pspp pspr psps psrp psse psst psts pter ptgs rbbb rbbr rbbs rbsp rbss rbst rebb rebe rebs reeb reep rees reet rege regr regs regt repe repp repr reps rept rere rerg rers rert rese resp ress rest rete retr rets rett rgbe rgtr rgts rpet rpgs rpps rpts rrrr rrsp rsee rsgb rspb rsps rsre rstp rsts rtee rtes rtgs rtps rtss rttp rtts sbbs sber sbse sbsp sbst se-e se-g se-s se-t sebe sebs sebt seeb seeg seep seer sees seet sege segg segs sepe sepg sepp sepr seps sept serb sere serg serp serr sers sert sese sess sest set- sete sets sett sger sges sggg sggs sgps sgss sgts speb spee speg sper spes spet spgb spgt spps sprs spse spsp spss spst sptb sptr spts sreb sres srgb srps srpt srsp srtp srtr ssbr ssee ssep sses sset ssgs ssgt sspe ssps sspt ssrg ssrs sssb ssss sstb sstp ssts stbs stee steg step ster stes stet stge stgr stpp stps stre strs stss sttr tbbs tbgs tbrb tbsp tbst tbtp teer tees teet tegg tegs tegt tepe tepp ter- tere terp terr ters tese tesp tess test tete tetr tets tett tgts tpbg tpeg tper tppp tppr tprs tpte tptp tptr tre- tree treg tres tret trge trpe trpg trpp trps trst trte trtr tses tset tsgt tsps tspt tsse tssg tssr tsst tsts ttbb tter ttss tttt

-tree bbbee bbser be-er beber bebes beebe beebs beeps beers beest beete beets begee beget begge beggs beppe berbe bereg beres beret berge bergs berre berse berte berts besee beset besse beste bests betee beter betes betre betrs bett- bette betts breer brees breet breg- brege bregg brere brers brese bress brest brets brett brrrr bssgp btr-t ebber ebbet eberg ebers ebert eeeee eepee egers egest egger egres egret epees eppes epptb erbbe erber erebs erege erept erere erest erets erres erses erste ersts erte erter ertes esere esp-r esper espre esser esses essse estee estep ester estes estet estre etest etete etree etres etter ettes gberg gbpee geber gebet gebre geeps geere geers geert geese geest geete gegge gerbe gerbs geres gerre gers- gerse gerss gerts gertt geser gesse geste gests getee geter gette getts grebe greer grees greet grege gregg gregs grepe greps grese gress grest grete grett grrrr gsses gtspp gtsss p-rep pbers pebre peege peeps peere peers peert peese peest peete peets pepee pepes peppe pepst pept- perer peres peret perge perps perre perse persp perst