-er -up b-p b-u bbb bbd bbe bbp bbr bbs bbu bdb bdd bde bdp bdr bds bdu be- beb bed bee bep ber bes beu bpb bpd bpe bpp bpr bps bpu brb brd bre brp brr brs bru bsb bsd bse bsp bsr bss bsu bub bud bue bup bur bus buu dbb dbd dbe dbp dbr dbs dbu ddb ddd dde ddp ddr dds ddu de- deb ded dee dep der des deu dpb dpd dpe dpp dpr dps dpu drb drd dre drp drr drs dru dsb dsd dse dsp dsr dss dsu dub dud due dup dur dus ebb ebd ebe ebp ebr ebs ebu ed- edb edd ede edp edr eds edu eeb eed eee eep eer ees ep- epb epd epe epp epr eps epu erb erd ere erp err ers eru es- esb esd ese esp esr ess esu eu- eub eud eue eup eur eus p-p pbb pbd pbe pbp pbr pbs pbu pdb pdd pde pdp pdr pds pdu peb ped pee pep per pes peu ppb ppd ppe ppp ppr pps ppu prb prd pre prp prr prs pru ps- psb psd pse psp psr pss psu pub pud pue pup pur pus puu rbb rbd rbe rbp rbr rbs rbu rdb rdd rde rdp rdr rds rdu re- reb red ree rep rer res reu rpb rpd rpe rpp rpr rps rpu rrb rrd rrp rrr rrs rru rsb rsd rse rsp rsr rss rsu rub rud rue rup rur rus ruu sbb sbd sbe sbp sbr sbs sbu sdb sdd sde sdp sdr sds sdu se- seb sed see sep ser ses seu spb spd spe spp spr sps spu sr- srb srd sre srp srr srs ss- ssb ssd sse ssp ssr sss ssu sub sud sue sup sur sus suu ubb ube ubp ubr ubs ubu udb udd ude udp udr uds udu ueb ued uee uep uer ues up- upb upd upe upp upr ups upu ur- urb urd ure urp urr urs uru usb usd use usp usr uss usu uue uur uus uuu

bbbb bbbs bbdd bbeb bbpr bd-r bdes bdsd bebb bebe bede beds bedu beeb beed beep beer bees berd bere berr bers beru bes- bese bess beur bprd bpsu brds breb bred bree brep brer bres brrr brrs brsb brsr brud brue brup brus bsbd bseb bsed bsee bser bses bspp bspr bsrd bssd bsse bsup bubb bube bubs bubu budb budd bude buds budu buer bueu bups bur- burb burd bure burp burr burs buru buse buss busu buus dbpd dbrs dbss dbus dddd ddes ddps ddre ddss ddub debe debs debu dedd dede dedu deeb deed deep deer dees depe depp depr deps der- derb dere derp derr ders des- dese desp dess desu deue deur deus dper dpsd dpsu dred dree dres drrs drsp drub drue drup drus druu dsdp dsdr dsps dsrp dsrr dssp dub- dubb dube dubs dubu dudd dude duds dudu duer dues dupe dure duru duse duur ebbr ebbs ebed eber ebes ebru ebur ebus edde eddp edds ede- eder edes edru edss edup edur eede eedu eeee eees eeps eers eese epee eper epes eppp epps eprb eprp eprs epsd epsp epss epub epus erbb erbe erde erds ereb ered erer eres erpe erps erre errs erse erub erur erus esbs esdp esds esdu esee eser eses espe espp esps esrd esse essp essu esus eude euer eur- eure euse pbed pbrs pbsp pdbs pdes pdpr pdrs pdsd pdss ped- pede peds peed peep peer pees pepd pepe peps per- perd pere perp perr pers peru pese pess pesu peur ppds pper pppd pppp ppps ppru ppss ppur prbs pre- preb pred pree prep pres preu prpd prps prrd prrs prsd prse prss prud prue prus pruu psbd psbr psdp psdr psds pseb pspp pspr psps psrd psrp psse pu-e pube pubs pubu puds pudu pued puer pueu pupe pups pupu pur- purb pure purp purr purs puru pusd puss rbbb rbbr rbbs rbds rbsd rbsp rbss rdbp rder rebb rebe rebs rebu redd rede redr reds redu reeb reed reep rees repe repp repr reps repu rerd rere rers reru rese resp ress reue reup reus reuu rpdp rpps rred rrrr rrsp rsdd rsds rsee rspb rsps rsre rubb rube rubp rubs rubu rudd rude rudp ruds rued ruer rues rupe rupp rurd rure rurp rurs ruru ruse russ rusu ruud sbbs sbds sber sbsd sbse sbsp sbus sdds sdep sder sdes sdpr sdps sdrs sdss sdsu se-d se-e se-s se-u sebe sebs sede seds seeb seed seep seer sees seeu sepd sepe sepp sepr seps sepu serb serd sere serp serr sers seru sese sess seur spde spdp spdr speb sped spee sper spes sppd spps sprd sprs spsd spse spsp spss spud spue spur spus srde sreb sres srps srsd srsp srub ssbr ssdd ssdp ssee ssep sses sspe ssps ssrs sssb ssss sub- subb subd subs sudd sude suds sued suee suer sues sueu sup- supe supp supr sups sur- surd sure surp surr surs suru sus- susd suse susp suss susu suus u-rp ubbe uber ubud udds uder udpd udsd uers uess upbe uped uppe uppp uppu upse upup urbe urbs urde urds urdu ure- ured ures urre urse urss ursu urup urur urus usbe usbr usbs usde usdp usds used usee user uses uspp usps ussb usse ussr usss ussu usus uuuu

b-e-d bbbee bbser bbuss bd-re bdser bdubs be-er bebed beber bebes bedde bedee beder bedes bedse bedub bedue beebe beebs beede beeps beerd beers beesd beppe beppu berbe berde berdu bered beres berre berru berse berus besed besee besse beuer beure brebu bredd brede breed breer brees brerd brere brers brese bress breu- brrrr brud- brude bruds brued bruer brues bruse bruss bseed bsure bubbe buber budde budds buddu budur burbs burde burds bures burps burrs burru burse burud burus bused buser buses busse bussu busur busuu d-bus ddddd debed deber debes debus