-er -up b-p b-u bbb bbe bbp bbr bbs bbu bbx be- beb bee bep ber bes beu bex bpb bpe bpp bpr bps bpu bpx brb bre brp brr brs bru brx bsb bse bsp bsr bss bsu bsx bub bue bup bur bus buu bux bxb bxx ebb ebe ebp ebr ebs ebu ebx eeb eee eep eer ees eex ep- epb epe epp epr eps epu epx erb ere erp err ers eru es- esb ese esp esr ess esu esx eu- eub eue eup eur eus eux ex- exe exp exr exs exu exx p-p pbb pbe pbp pbr pbs pbu pbx peb pee pep per pes peu pex ppb ppe ppp ppr pps ppu ppx prb pre prp prr prs pru prx ps- psb pse psp psr pss psu psx pub pue pup pur pus puu pxe pxr pxs rbb rbe rbp rbr rbs rbu rbx re- reb ree rep rer res reu rex rpb rpe rpp rpr rps rpu rpx rrb rrp rrr rrs rru rsb rse rsp rsr rss rsu rsx rub rue rup rur rus ruu rux rxp rxr rxs sbb sbe sbp sbr sbs sbu sbx se- seb see sep ser ses seu sex spb spe spp spr sps spu spx sr- srb sre srp srr srs srx ss- ssb sse ssp ssr sss ssu ssx sub sue sup sur sus suu sux sxs sxu ubb ube ubp ubr ubs ubu ubx ueb uee uep uer ues up- upb upe upp upr ups upu upx ur- urb ure urp urr urs uru urx usb use usp usr uss usu usx uue uur uus uuu uxb uxr uxu xbe xbr xbx xee xep xer xes xeu xex xpb xpe xpp xps xrx xsb xsp xss xue xup xus xxp xxx

bbbb bbbs bbeb bbpr bebb bebe beeb beep beer bees bere berr bers beru bes- bese bess beur beux bpsu breb bree brep brer bres brex brrr brrs brsb brsr brue brup brus brux bseb bsee bser bses bspp bspr bsse bsup bubb bube bubs bubu buer bueu bups bur- burb bure burp burr burs buru buse buss busu busx buus ebbr ebbs eber ebes ebru ebur ebus eeee eees eeps eers eese epee eper epes eppp epps eprb eprp eprs epsp epss epsx epub epus epxp er-x erbb erbe ereb erer eres erpe erps erre errs erse erub erur erus esbs esee eser eses espe espp esps esse essp essu esus euer eur- eure euse exer exes expr exrx pbrs pbsp peep peer pees pepe peps per- pere perp perr pers peru pese pess pesu peur pper pppp ppps ppru ppss ppur prbs pre- preb pree prep pres preu prex prps prrs prse prss prue prus pruu psbr pseb pspp pspr psps psrp psse pu-e pube pubs pubu puer pueu pupe pups pupu pur- purb pure purp purr purs puru puss puxe pxes rbbb rbbr rbbs rbsp rbss rebb rebe rebs rebu reeb reep rees repe repp repr reps repu rere rers reru rese resp ress reue reup reus reuu reux rexx rpps rrrr rrsp rsee rspb rsps rsre rubb rube rubp rubs rubu ruer rues rupe rupp rure rurp rurs ruru ruse russ rusu rxes sbbs sber sbse sbsp sbus se-e se-s se-u se-x sebe sebs seeb seep seer sees seeu seex sepe sepp sepr seps sepu sepx serb sere serp serr sers seru sese sess seur seux sex- sexe sexp speb spee sper spes spex spps sprs spse spsp spss spue spur spus sreb sres srps srpx srsp srub ssbr ssee ssep sses ssex sspe ssps sspx ssrs sssb ssss sub- subb subs suee suer sues sueu sup- supe supp supr sups sur- sure surp surr surs suru sus- suse susp suss susu suus sux- suxe u-rp ubbe uber uers uess upbe uppe uppp uppu upse upup urbe urbs ure- ures urex urre urse urss ursu urup urur urus usbe usbr usbs usee user uses uspp usps ussb usse ussr usss ussu usus uuuu uxue uxus xbee xeer xer- xers xeus xexe xper xrep xsup xurs xuxu xxxx

bbbee bbser bbuss be-er beber bebes beebe beebs beeps beers beppe beppu berbe beres berre berru berse berus besee besse beuer beure bre-x brebu breer brees brere brers brese bress breu- breux brrrr bruer brues bruse bruss bsure bubbe buber burbs bures burps burrs burru burse burus buser buses busse bussu busur busuu buxus ebber ebers ebure eeeee eepee epees epeus eppes epsxe epubs epure erbbe erber erebs erere erres erses erubs esbus esere esp-r esper espre esser esses essex essse essue esure eurex eurre eurus euser exper exurb p-rep pbers pebre peebu peeps peere peers peese pepee pepes peppe pepup perer peres perps perre perse persp perur perus peses pesse peure peurs ppers prees preps prese press preus preux pruss puber pubes puppe puree purer pures purex purre purrs purse purus puurs re-up rebbe reber rebus reepe reere reese reppe repps repub repus rere- reree reres resee reses resse resue resup resus reuer reups reuse reuss rexer rexes rrsps rubee ruber rubes rubup rubus ruere ruers rupee ruper rupes rupse ruses ruspe russe s-bus sebbe sebes seebe seeps seere seers seese seesu seeup serbs serer seres serpe serps serre serse serss serue serup seser seses sesse sesue seuer seure seuss sexer sexes sexps sexup sexus speer spees speex spere sperr speus spree spres sprue spues spure spurr spurs spuse srprb sssrb sssss subbu suber subex subss suere suers suess sueur super supes suppe supps supre supur surer sures surpu surre surur surus suser suses susse susus uber- ubers uberx upper upse- urbes urbex ursus urubu urupe usees users useup usses usure usurp uuuuu xbxrx xeres xerse xerus xexeu xexex xures

bbbbbb bbsers beebee beebes beeper beerse bepeps berbee berber berbes berere berrer berres bersee berube besbes besbre bespue besser besses bessus besure beurre beuxes brebes breere breese breres bresse breuer brubru bruree brusse bruxer bruxes bubber bubbes bububu bueres bupers burbur burpee burper burree burrer burrup burser burses burseu busbee