-er -up b-p b-u bbb bbe bbf bbp bbr bbs bbu be- beb bee bef bep ber bes beu bfb bfe bff bfp bfr bfs bfu bpb bpe bpf bpp bpr bps bpu brb bre brf brp brr brs bru bsb bse bsf bsp bsr bss bsu bub bue buf bup bur bus buu ebb ebe ebf ebp ebr ebs ebu eeb eee eef eep eer ees ef- efb efe eff efp efr efs ep- epb epe epf epp epr eps epu erb ere erf erp err ers eru es- esb ese esf esp esr ess esu eu- eub eue euf eup eur eus fbb fbe fbf fbp fbr fbs fbu feb fee fef fep fer fes feu ffe fff ffp ffr ffs ffu fpb fpe fpp fpr fps fpu frb fre frf frp frr frs fru fsb fse fsf fsp fsr fss fsu fub fue fuf fup fur fus fuu p-p pbb pbe pbf pbp pbr pbs pbu peb pee pef pep per pes peu pfb pfe pff pfp pfr pfs pfu ppb ppe ppf ppp ppr pps ppu prb pre prf prp prr prs pru ps- psb pse psf psp psr pss psu pub pue puf pup pur pus puu rbb rbe rbf rbp rbr rbs rbu re- reb ree ref rep rer res reu rfb rfe rff rfp rfr rfs rfu rpb rpe rpf rpp rpr rps rpu rrb rrf rrp rrr rrs rru rsb rse rsf rsp rsr rss rsu rub rue ruf rup rur rus ruu sbb sbe sbf sbp sbr sbs sbu se- seb see sef sep ser ses seu sfb sfe sff sfp sfr sfs sfu spb spe spf spp spr sps spu sr- srb sre srf srp srr srs ss- ssb sse ssf ssp ssr sss ssu sub sue suf sup sur sus suu ubb ube ubf ubp ubr ubs ubu ueb uee uef uep uer ues ufe uff ufp ufr ufs ufu up- upb upe upf upp upr ups upu ur- urb ure urf urp urr urs uru usb use usf usp usr uss usu uue uur uus uuu

bbbb bbbs bbeb bbpr bebb bebe beeb beef beep beer bees befe beff bere berr bers beru bes- bese bess beur bffs bfpp bfsr bpsu breb bree bref brep brer bres brfu brrr brrs brsb brsr brue brup brus bseb bsee bser bses bsff bsfs bspp bspr bsse bsup bubb bube bubs bubu buer bueu bufe buff bufr bups bur- burb bure burp burr burs buru buse buss busu buus ebbr ebbs eber ebes ebru ebur ebus eeee eees eefe eeps eers eese efbr efes effs epee eper epes eppp epps eprb eprp eprs epsf epsp epss epub epus erbb erbe ereb erer eres erfs erpe erps erre errs erse erub erur erus esbs esee eser eses esfp esfs espe espp esps esse essp essu esuf esus euer eur- eure euse fbrs fbus febs feeb feer fees fefe feff feps ferb fere ferr fers feru fese fess feus ffee ffff ffps ffrr ffss fprf free frep fres frps frsb frub frue fspf fssf fssp fubb fubs fubu fuff fufu fur- fure furr furs fuse fuss fusu pbrf pbrs pbsp peep peer pees peff pefs pepe peps per- pere perf perp perr pers peru pese pess pesu peur pfff pffr pfps pper pppp ppps pprf ppru ppsf ppss ppur prbs pre- preb pree pref prep pres preu prfs prps prrs prse prss prue pruf prus pruu psbr pseb psfs pspp pspr psps psrp psse pu-e pube pubs pubu puer pueu puff pupe pups pupu pur- purb pure purp purr purs puru puss rbbb rbbr rbbs rbsp rbss rebb rebe rebs rebu reeb reef reep rees refe reff refr refs refu repe repp repr reps repu rere rers reru rese resp ress reue reuf reup reus reuu rfef rpps rrrr rrsp rsee rspb rsps rsre rubb rube rubp rubs rubu ruer rues rufe ruff rupe rupp rure rurp rurs ruru ruse russ rusu sbbs sbef sber sbse sbsp sbus se-e se-f se-s se-u sebe sebs seeb seef seep seer sees seeu seff sepe sepp sepr seps sepu serb sere serf serp serr sers seru sese sess seur sfer sfss sfsu speb spee spef sper spes spfs sppf spps sprs spse spsp spss spue spur spus sreb sres srps srsp srub ssbr ssee ssep sses ssfp sspe sspf ssps ssrs sssb sssf ssss sub- subb subs suee suer sues sueu suf- suff sufr sufs sufu sup- supe supp supr sups sur- sure surf surp surr surs suru sus- suse susp suss susu suus u-rp ubbe uber uers uess ufer uffe ufpb upbe uppe uppp uppu upse upup urbe urbs ure- ures urfe urff urre urse urss ursu urup urur urus usbe usbr usbs usee usef user uses usfs uspp usps ussb usse ussf ussr usss ussu usus uuuu

bbbee bbser bbuss be-er beber bebes beebe beebs beefs beeps beers beffe befur beppe beppu berbe beres berre berru berse berus besee besse beuer beure brebu breef breer brees brere brers brese bress breu- brrrr bruer brues bruff bruse bruss bsure bubbe buber buffe buffs burbs bures burps burrs burru burse burus buser buses busse bussu busur busuu ebber ebers ebure eeeee eepee efere effer efuru efuse epees epeus eppes epubs epure erbbe erber erebs erere erres erses erubs esbus esere esp-r esper espre esref esser esses essse essue esure eurre eurus euser febre feebs feere feers feese feres ferr- ferre ferse ferus feser fesse feuer feurs freep freer frees frere frese fress freur fu-fu fubbs fubus fuffs furps furrs furse furus fusee fuser fuses fusse fusus fuuse p-rep pbers pebre peebu peeps peere peers peese pepee pepes peppe pepup perer peres perfs perps perre perse persp perur perus peses pesse peure peurs ppers preef prees preff prefs preps prese press preus pruss puber pubes puffs puppe puree purer pures purre purrs purse purus puurs re-up rebbe reber rebus reefe reefs reepe reere reese refer reffe refus reppe repps repub repus rere- reree reres resee reses resse