-er b-u bbb bbe bbl bbm bbr bbs bbu be- beb bee bel bem ber bes beu blb ble bll blm blr bls blu bmb bme bml bmm bmr bms bmu brb bre brl brm brr brs bru bsb bse bsl bsm bsr bss bsu bub bue bul bum bur bus buu ebb ebe ebl ebm ebr ebs ebu eeb eee eel eem eer ees elb ele ell elm elr els elu em- emb eme eml emm emr ems emu erb ere erl erm err ers eru es- esb ese esl esm esr ess esu eu- eub eue eul eur eus lbb lbe lbl lbm lbr lbs lbu leb lee lel lem ler les leu llb lle lll llm llr lls llu lmb lme lml lmm lmr lms lmu lrb lrm lrr lrs lru lsb lse lsl lsm lsr lss lsu lub lue lul lum lur lus luu m-r mbb mbe mbl mbm mbr mbs mbu meb mee mel mem mer mes meu mlb mle mll mlm mlr mls mlu mmb mme mml mmm mmr mms mmu mrb mre mrl mrm mrr mrs mru msb mse msl msm msr mss msu mub mue mul mum mur mus muu rbb rbe rbl rbm rbr rbs rbu re- reb ree rel rem rer res reu rle rll rlm rlr rls rlu rmb rme rml rmm rmr rms rrb rrl rrm rrr rrs rru rsb rse rsl rsm rsr rss rsu rub rue rum rur rus ruu sbb sbe sbl sbm sbr sbs sbu se- seb see sel sem ser ses seu slb sle sll slm slr sls slu smb sme sml smm smr sms smu sr- srb sre srl srm srr srs ss- ssb sse ssl ssm ssr sss ssu sub sue sul sum sur sus suu ubb ube ubl ubr ubs ubu ueb uee uel uem uer ues ulb ule ull ulm ulr uls ulu um- umb ume uml umm umr ums umu ur- urb ure url urm urr urs uru usb use usl usm usr uss usu uue uum uur uus uuu

bbbb bbbs bbeb bblb bbls bebb bebe beeb beel beem beer bees bele bell belm bels belu beme bemu bere berm berr bers beru bes- bese besm bess beur bleb blee blem bles bleu blls blme blss blub blue blum blur blus bmus breb bree brel brem brer bres brls brrm brrr brrs brsb brsr brue brum brus bseb bsee bser bses bsms bsrm bsse bssm bubb bube bubs bubu buel buem buer bueu bulb bule bull buls bulu bum- bumb bums bur- burb bure burl burm burr burs buru buse buss busu buus ebbr ebbs ebel eber ebes ebru ebul ebur ebus eeee eees eele eels eems eers eese el-b elbe elbu elee elem eler eles elle ells ellu elme elml elms else elsu elue elul elum elus embe embr embs emel emer emes emeu emle emlm emme emml emms emmu emre emrs emse emul emus erbb erbe ereb erel erem erer eres erle erll erme erms erre errs erse erub erum erur erus esbs esee esel esem eser eses esme esmr esse essl essu esus euer eule eums eur- eure euse lblr lbms lbrs le-u lebu leel leem leer lees lele lell lelu leme lemm lems lemu lere lerm lese less lesu leur llbs lles lleu llll llms lmmr lmms lmrs lmsr lrrr lrse lrsm ls-r lsbu lses lssr lube lubs luer lues lule lull lulu lumb lume lums lure lurs luse luss mbbs mbes mbms mbrs mbsl mbus mebe meel meem meer mees mel- melb mele mell mels meme meml memr mems memu mer- merb mere merl merm mers meru mes- mese mesr mess meum meus mlle mlrs mlse mlss mmes mmmm mmms mmse mmsu mmus mrbb mrbm mrbs mreb mree mres mrls mrml mrse mrsl msee msem msmb msml msmm msms msmu msrb mssm mssr msus mube mubs muee muel mues mule mull mulm mulu mume mumm mums mumu mure murl murr murs muru muse musl muss musu rbbb rbbr rbbs rble rbms rbsl rbss rebb rebe rebs rebu reeb reel reem rees relb rele rell relm rels reme rems rere rers reru rese ress reue reul reus reuu rlee rleu rlls rlml rlms rmbs rmll rrle rrrr rrum rsee rsme rsml rsre rssl rsum rubb rube rubs rubu ruel ruer rues rule rull rumb rume ruml rumm rums rure rurs ruru ruse russ rusu sbbs sber sbml sbse sbus se-e se-s se-u sebe sebs seeb seel seem seer sees seeu selb sele sell selm sels selu seme sems semu serb sere serm serr sers seru sese sess seul seur sleb slee slem sler sles sllm slmm slre slrs slsu slub slue slum slur smbe smeb smee smle smls smss smur smus sreb srem sres srub ssbr ssee ssem sses ssle ssml ssrl ssrm ssrs sssb sssm ssss sub- subb subl subm subs suee suel suer sues sueu sul- sule sull sulm sulu sum- sume sums sumu sur- sure surr surs suru sus- suse suss susu suum suus ubbe uber uble ubls uele uell uers uess uleb ulee ules ulle ullr ulme ulmu ulul ulum ulus umb- umbe umer umes umms umsu umus urbe urbs ure- ures urle urls urre urse urss ursu urum urur urus usbe usbl usbr usbs usee usel user uses usle uslu usme usmm usms ussb usse ussr usss ussu usul usus uulu uuuu

bbbee bbser bbuss be-er bebel beber bebes beebe beebs beele beers belee belem beles bellb belle bells belue belum belur belus bembe bemer bemus berbe berel beres berle berme berms berre berru berse berum berus besee besem besme besse beuer beule beure blebs bleer blees blere blese bless bleue bleus blubs bluer blues blume blurb blure blurr blurs brebu breel breem breer brees brell brels breme bremm brems brere brers brese bress breu- brmmm brrrr bruer brues brule brull brume brumm bruse bruss bsure bubbe buber buble buell bulb- bulbs bull- bulle bulls bulse bulul bulus bumbu bumme burbs burel bures burle burls burrs burru burse