-er b-u bbb bbe bbl bbr bbs bbu be- beb bee bel ber bes beu blb ble bll blr bls blu brb bre brl brr brs bru bsb bse bsl bsr bss bsu bub bue bul bur bus buu ebb ebe ebl ebr ebs ebu eeb eee eel eer ees elb ele ell elr els elu erb ere erl err ers eru es- esb ese esl esr ess esu eu- eub eue eul eur eus lbb lbe lbl lbr lbs lbu leb lee lel ler les leu llb lle lll llr lls llu lrb lrr lrs lru lsb lse lsl lsr lss lsu lub lue lul lur lus luu rbb rbe rbl rbr rbs rbu re- reb ree rel rer res reu rle rll rlr rls rlu rrb rrl rrr rrs rru rsb rse rsl rsr rss rsu rub rue rur rus ruu sbb sbe sbl sbr sbs sbu se- seb see sel ser ses seu slb sle sll slr sls slu sr- srb sre srl srr srs ss- ssb sse ssl ssr sss ssu sub sue sul sur sus suu ubb ube ubl ubr ubs ubu ueb uee uel uer ues ulb ule ull ulr uls ulu ur- urb ure url urr urs uru usb use usl usr uss usu uue uur uus uuu

bbbb bbbs bbeb bblb bbls bebb bebe beeb beel beer bees bele bell bels belu bere berr bers beru bes- bese bess beur bleb blee bles bleu blls blss blub blue blur blus breb bree brel brer bres brls brrr brrs brsb brsr brue brus bseb bsee bser bses bsse bubb bube bubs bubu buel buer bueu bulb bule bull buls bulu bur- burb bure burl burr burs buru buse buss busu buus ebbr ebbs ebel eber ebes ebru ebul ebur ebus eeee eees eele eels eers eese el-b elbe elbu elee eler eles elle ells ellu else elsu elue elul elus erbb erbe ereb erel erer eres erle erll erre errs erse erub erur erus esbs esee esel eser eses esse essl essu esus euer eule eur- eure euse lblr lbrs le-u lebu leel leer lees lele lell lelu lere lese less lesu leur llbs lles lleu llll lrrr lrse ls-r lsbu lses lssr lube lubs luer lues lule lull lulu lure lurs luse luss rbbb rbbr rbbs rble rbsl rbss rebb rebe rebs rebu reeb reel rees relb rele rell rels rere rers reru rese ress reue reul reus reuu rlee rleu rlls rrle rrrr rsee rsre rssl rubb rube rubs rubu ruel ruer rues rule rull rure rurs ruru ruse russ rusu sbbs sber sbse sbus se-e se-s se-u sebe sebs seeb seel seer sees seeu selb sele sell sels selu serb sere serr sers seru sese sess seul seur sleb slee sler sles slre slrs slsu slub slue slur sreb sres srub ssbr ssee sses ssle ssrl ssrs sssb ssss sub- subb subl subs suee suel suer sues sueu sul- sule sull sulu sur- sure surr surs suru sus- suse suss susu suus ubbe uber uble ubls uele uell uers uess uleb ulee ules ulle ullr ulul ulus urbe urbs ure- ures urle urls urre urse urss ursu urur urus usbe usbl usbr usbs usee usel user uses usle uslu ussb usse ussr usss ussu usul usus uulu uuuu

bbbee bbser bbuss be-er bebel beber bebes beebe beebs beele beers belee beles bellb belle bells belue belur belus berbe berel beres berle berre berru berse berus besee besse beuer beule beure blebs bleer blees blere blese bless bleue bleus blubs bluer blues blurb blure blurr blurs brebu breel breer brees brell brels brere brers brese bress breu- brrrr bruer brues brule brull bruse bruss bsure bubbe buber buble buell bulb- bulbs bull- bulle bulls bulse bulul bulus burbs burel bures burle burls burrs burru burse burus buser buses busle busse bussu busur busuu ebber ebble ebell eberl ebers eblul ebull ebure eeeee eeler elele elers eless ellel eller elles ellul elser elses eluls elulu eluru erbbe erber erebs erere erles erres erses erubs esbus esels esere esrel essel esser esses essse essue esure euell euler eurel eurre eurus euser lebel leber lebes lebus leell leere leers leese leles leleu lelle lerer leser lesse lesue lesur leuse llers llrrs lsers lubbe luber lubes luble lubur lules lulle lulls lulul lulus lurer lures lurue luser lusse lusus rebbe rebel reber rebus reels reere reese relee reles relue rere- reree reres resee resel reses resse resue resus reuel reuer reule reuse reuss rless rubee rubel ruber rubes ruble rubus ruele ruell ruere ruers ruler rules ruses rusle russe ruule s-bus sebbe sebes seebe seele seels seere seers seese seesu selbe selbu seler seles selle sells sellu serbs serer seres serle serre serse serss serue seser seses sesse sesue seuer seule seure seuss slebs sleer sless slubs sluer slues slurb slurs sluss ssbul sssrb sssss subbu suber subss suell suere suers suess sueur sulle sulls sulse sulur sulus surbl surer sures surre surul surur surus suser suses susse susus suuel ubble uber- ubers ueles ulees ullur ulser ululu uluru urbes urelu ursel ursus urubu usees usell users ussel usses usure uuuuu

b-reel bbbbbb bbsers beblur beebee beebes beeler beerse beesel belber beless beller belles belleu bellue bellus belser belses belull berbee berber berbes bereel berere berles berrer berres bersee berube besbes besbre besler beslur bessel besser besses bessus besure beurre bleere blesle blesse blublu blurbs blurre blurse brebel brebes breere breese breles breres bresle bresse breuer brubru bruel brulee bruree brusel brusle brusse bubber bubbes bubble bubele bububu bueler bueres bulbel bulbul bulbus bull-e bullee buller bulles bulses bulusu burble burbur burell burels burler burree burrel burrer burser burses burseu busbee bussel busser busses bussle ebbers eberle eblees ebulus eburru ebusus eebree eelers eersel eeuler eleele elessu ellers erbree erebus eresus ersure erulus eseebu essell essess esssse essure eubule euless euller eusebe leelee leerer leeser leesse lelese lesere leslee lessee lesser lesses lesure lubber luller lullus lurers lurulu lusers r-less re-use rebbes rebble rebell rebels