bbbb bbdd bbeb bblb bbrc bcbc bccc bccl bcde bcec bcer bcru bcuc bd-r bdbc bddc bdle bebb bebe beck becu bede bedl bedu beeb beed beek beel beer beke beld bele belk bell belu berc berd bere berk berr beru beuk beur blcu bldc bldr bleb bled blee blek bleu blkb blkd blrc blub blud blue blur brcb brce breb brec bred bree brek brel brer brkb brrr bruc brud brue bubb bube bubu bucc buce buck bucu budb budd bude budl budu buel buer bueu buke bukk buku bulb buld bule bulk bull bulu bur- burb burd bure burk burl burr buru c-cd cbbc cbcc cbce cbcl cbcr cbcu cbdb cbdc cbec cbee cber cbkl cbkr cblb cblc cbrd cbre cbrl ccbc cccb cccc cccl cccu ccdc ccdr cced ccee ccel cclc ccrc ccre ccrl ccuc cd-e cd-r cddb cddl cddr cdec cder cdre cebu cec- cece cedd cede cedu ceeb ceec ceel ceke cel- celc cele cell cer- cerc cerd cere cerl ckbc ckbe ckck ckcl ckdu cker ckrc ckrd clcd cldc cldr clec cled clee clek cler cleu clrd club clud clue crbc crbu crcc crce crcr crdc cre- creb crec cred cree creu crkc crkl crub crud crue cruk cub- cubb cube cucc cuce cuck cude cued cuek cuer cuk- cuke culb culc culd cule culk cull curb curd cure curl curr dbcc dcbc dccb dccc dccl dccu dcdb dcrk dddd ddlc ddrc ddre ddub debe debu dec- decc decd dece deck decl dedd dede dedu deeb deed deek deel deer dek- deke deld dele delk dell der- derb derc dere derk derr deue deuk deul deur dkdc dlbd drbc dred dree drek drel drub drue druk druu dub- dubb dubc dube dubu duce duck dudd dude dudu duel duer duke duku dulc dule dull dulu dure durk duru duul duur e-cl ebbc ebbr ebcc ebed ebel eber ebru ebul ebur ecbc ecbe eccb eccc ecce eccl ecdc ecdl eced ecrc ecrl ecrr ecru eddc edde ede- edel eder edle edru educ edur eede eedu eeee eeke eele eerc ekeb eked ekek eker ekur el-b elbe elbu elcb elce elde eldr elec eled elee elek eler elke elle ellu elue elul erbb erbe ercc erce erde ereb erec ered erel erer erke erld erle erll errc erre erub eruc erur eubc eucd eude euer eule eur- eurc eure kbbb kbbc kbbd kbbe kbbk kbbl kbbr kbbu kbcb kbce kbck kbcl kbcr kbcu kbdb kbde kbdl kbdr kbeb kbec kbed kbee kbek kbel kber kbkb kbkk kbkl kbkr kblb kbld kble kbll kblr kblu kbrb kbrc kbrd kbre kbrk kbrl kbru kbub kbuc kbud kbue kbuk kbul kbur kbuu kcbc kcbd kcbk kcbl kcbr kcbu kccb kccc kccd kcck kccl kccr kccu kcdc kcdd kcdr kcdu kceb kcec kced kcee kcel kceu kckc kckk kckl kckr kclc kcle kclk kcll kclr kclu kcrc kcrr kcru kcub kcue kcuk kcul kdbb kdbl kdbr kdcc kdcd kdce kdcr kddb kddc kddd kddk kddl kddr kdeb kdec kdel kdkb kdkd kdkk kdkr kdlb kdlc kdld kdll kdlr kdrb kdrl kdub kduc kdur kebb kebc kebe kebr kebu keck kecr kedb kedc kedd kede kedr keed keek keel keer kekb kekc keke kekl keku keld kele kelk kell kelu ker- kerb kerc kere kerk kerl kerr keru keul keur kkbb kkbd kkbe kkbl kkbr kkcb kkcd kkck kkcl kkcr kkdc kkdd kkdl kked kkkk kklb kklc kkld kkll kkrb kkrc kkre kkrk kkrl kkrr kkuu klbb klbc klbd klbe klbl klbu klcb klcc klcd klce klck klcl klcr kldc kldd klde kldr kleb klec kled klee klek kler klkc klkk klkl klkr kllb kllc klle kllk klrc klrd klrk klrr klru klub klue kluk klur kluu krbb krbd krbe krbk krbl krbr krcb krcc krcd krce krcl krcu krdc krdd krde krdr krdu kreb krec kred kree krek kreu krkc krkd krke krkk krkr krku krlc krld krle krrb krrc krre krrk krrl krrr kruc krue kruk krul krur kubb kubc kubd kube kubr kubu kucb kucc kucd kuce kucr kudd kude kudl kudu kued kuek kuel kueu kuke kukk kukl kuku kulb kuld kule kull kulu kurb kurd kure kurk kurl kurr kuru kuub kuuk kuul kuur kuuu lbcc lblr lcbc lccc lcce lcdd lcdr lcer lcrd lcrl le-u lebd lebu lece leck lede leed leek leel leer leke lekk lele lell lelu lerc lerd lere lerk leuc leud leuk leur llcc lldb lldc lleu lllc llll llud lrdd lrrc lrrr lube luce luck ludd lude lued luer luke lule lull lulu lurd lure lurk luuk rbbb rbbr rbcl rble rcbc rccb rccc rcdc rcde rcle rcrd rder rebb rebe rebk rebu recc recd rece reck recr recu redc redd rede redl redr redu reeb reed reek reel reke relb reld rele rell rerd rere reru reue reuk reul reuu rlee rleu rred rrle rrrr rubb rube rubu ruce ruck rudd rude rudl rued ruel ruer ruke rukk ruku rule rulk rull rurc rurd rure ruru ruud ubbe ubek uber uble ubud ucbc ucdc ucdd ucel ucrc udbc udel uder uduk uele uell ukcc ukek ukeu ukrc ukur ulbc ulcc ulde uleb ulee ulek ulle ullr uluk ulul urbe urde urdu ure- ured urke urle urre uruk urur uulu uuuu