-ene bbbb bbbs bbeb bblb bbls bbrc bcbc bcbs bccc bccl bccs bcec bcer bces bcnu bcrs bcru bcsc bcsl bcsn bcss bcuc bebb bebe becs becu beeb beel been beer bees bele bell bels belu bene benn bens benu berc bere bern berr bers beru bes- bese bess beur blcu bleb blee bles bleu blls blrc blss blub blue blur blus bner bnrr bnss brcb brce breb brec bree brel bren brer bres brls brns brrr brrs brsb brsr bruc brue brun brus bscs bseb bsec bsee bser bses bslc bsns bssc bsse bubb bube bubs bubu bucc buce bucs bucu buel buen buer bueu bulb bule bull buls bulu bunb bune bunn buns bunu bur- burb bure burl burn burr burs buru busc buse buss busu buus cbbc cbbs cbcc cbce cbcl cbcn cbcr cbcs cbcu cbec cbee cber cblb cblc cbln cbre cbrl cbrn cbsc cbse cbsn cbus ccbc ccbn cccb cccc cccl cccs cccu ccee ccel cclc ccls ccnb ccnc ccne ccnr ccns ccnu ccrc ccre ccrl ccrs ccsl ccsn ccss ccuc ccus cebs cebu cec- cece cecs ceeb ceec ceel cees cel- celc cele cell cels cen- cene cens cer- cerc cere cerl cern cers cesc cese cesr cess clec clee cler cles cleu clrs clsc club clue clun cnbc cnbl cnel cnes cnrc cnrr cnsl cnss crbc crbu crcc crce crcr cre- creb crec cree cren cres creu crls crne crns crss crub crue crun crus cscb cscc csce cscl cscr cscs csec csee cser cslr cslu csne csrc csrs csse cssr csur csus cub- cubb cube cubs cucc cuce cucn cuer cues culb culc cule cull culs cune curb cure curl curn curr curs cusb cuss cusu e-cl ebbc ebbr ebbs ebcc ebel eben eber ebes ebru ebul ebur ebus ecbc ecbe eccb eccc ecce eccl eces ecne ecrc ecrl ecrr ecru ecsc ecse ecss ecsu ecus eecs eeee eees eele eels eens eerc eers eese el-b elbe elbu elcb elce elec elee elen eler eles elle ells ellu elne else elsu elue elul elus enb- enbn enbr ence encl encs enee enel ener enes enls ennc enne enns ennu enrs ense ensu enue enur enus erbb erbe ercc erce ereb erec erel eren erer eres erle erll erne erns errc erre errs erse erub eruc erur erus esbs escb esce escr escs escu esee esel esen eser eses esne esse essl essu esus eubc euer eule eur- eurc eure euse lbcc lblr lbrs lbsc lcbc lccc lcce lccs lcer lces lcls lcrl lcrs lcsc lcsr le-u lebu lece leel leen leer lees lele lell lelu lene lenn lens lerc lere lern lese less lesu leuc leun leur llbs llcc llcs lles lleu lllc llll lncr lner lnes lrcs lrne lrrc lrrr lrse ls-r lsbu lscb lscs lses lsrc lssr lube lubs luce lucs luer lues lule lull lulu lune lunn luns lure lurs luse luss nbbc nbcc nbcs nber ncbc ncbs nccc nccn nccr nccs nccu ncec ncee ncel ncen ncer nces nclc ncln nclr ncnc ncrc ncre ncsc ncse ncsl ncss ncue nebb nebe nebn nebr nebs nebu necc nece necr necs neeb neel neen neer nees nelc nele nell nels nene nens nenu nerc nere nerl nerr ners neru nesb nesc nese nesl nesn nesr ness neuc neue neun neur neuu nlcc nlcs nlec nler nlls nlrb nlsc nnes nnls nnnn nnsl nnss nrcs nren nrlb nrrc nrrl nrsc nscc nscl nscs nseb nsec nsel nser nslr nsls nsnr nsrc nsrl nssb nssc nsse nssr nsss nsub nubc nube nubl nubs nuce nucs nucu nuee nuel nuer nule null nunc nune nunn nuns nurc nure nurl nurn nurr nurs nuru nuse nusl nuss nusu rbbb rbbr rbbs rbcl rble rbsl rbss rcbc rccb rccc rccs rcle rcls rcnl rcnr rcsc rcsl rcss rebb rebe rebs rebu recc rece recr recs recu reeb reel reen rees relb rele rell rels rene renn rens renu rere rers reru rese resn ress reue reul reus reuu rlcs rlee rleu rlls rnbr rncs rrle rrrr rrun rscc rscn rscs rsee rslc rsnn rsnr rsre rssl rubb rube rubs rubu ruce ruel ruen ruer rues rule rull runc rune runn runs rurc rure rurs ruru ruse russ rusu ruun sbbs sbcc sbcs sber sbse sbus sccc scce sccl sccs scec scee scel scer scl- sclc scls scnr scr- scrc scre scrn scrs scsc scsl scsn scsr scsu scub scul scun scur se-c se-e se-n se-s se-u sebe sebs sec- secc sece secn secr secs secu seeb seec seel seen seer sees seeu selb sele sell sels selu sene senn senr sens serb serc sere sern serr sers seru sesc sese sess seul seur slcc slcu sleb slee sler sles slln slrc slre slrn slrs slsc slsu slub sluc slue slur sncc sneb snee snel sner snes snns snrs snub snur snus srbc srcc sreb srec sres srnn srub ssbn ssbr sscc ssce sscs ssec ssee sses sslc ssle ssns ssrc ssrl ssrs sssb sssc ssss sub- subb subl subs suc- succ sucr sucs suee suel suen suer sues sueu sul- sulc sule sull sulu sun- sunb sune sunn suns sunu sur- surc sure surn surr surs suru sus- suse suss susu suus ubbe uber uble ubls ucbc ucel uces ucrc ucsb ucsc ucsu uele uell uers uesn uess ulbc ulcc uleb ulee ulen ules ulle ullr ulne ulul ulus unbe uncc unce uncl uncs uneb unec unee unen uner unes unle unne unns unrs uns- unsc unus urbe urbs ure- ures urle urls urne urns urre urse urss ursu urun urur urus usbc usbe usbl usbr usbs uscc usce uscs usee usel usen user uses usle uslu usnc usnr usnu ussb ussc usse ussr usss ussu usul usun usus uuen uulu uuuu