bbbb bbdd bbeb bbrc bcbc bccc bcde bcec bcer bcru bcuc bd-r bdbc bddc bdry bebb bebe beby becu bede bedu beeb beed beer beey berc berd bere berr beru bery beur beye brcb brce brdy breb brec bred bree brer brey brrr bruc brud brue bry- bryd brye bubb bube bubu bucc buce bucu budb budd bude budu budy buer bueu bur- burb burd bure burr buru bury buyu byce byde byed byer byrd byre byyd c-cd cbbc cbcc cbce cbcr cbcu cbdb cbdc cbec cbee cber cbrd cbre cbry ccbc cccb cccc cccu ccdc ccdr cced ccee ccrc ccre ccuc cd-e cd-r cddb cddr cdec cder cdre cebu cec- cece cedd cede cedu cedy ceeb ceec cer- cerc cerd cere cery ceyu crbc crbu crcc crce crcr crdc cre- creb crec cred cree creu crub crud crue cry- cryb cub- cubb cube cuby cucc cuce cude cued cuer curb curd cure curr cury cuy- cuyr cybb cybc cyc- cycb cycc cyre cyy- cyyc dbcc dc-y dcbc dccb dccc dccu dcdb dddd ddrc ddre ddry ddub debe debu deby dec- decc decd dece dedd dede dedu deeb deed deer der- derb derc dere derr dery deue deur deye deyr drbc dred dree drey drub drue druu dry- drye dub- dubb dubc dube dubu duby duce dudd dude dudu duer duey dure duru dury duur duyr dybe dybu dycd dyce dycu dydd dyde dyed dyer dyey dyr- dyrb dyrc dyre dyru dyur dyyr ebbc ebbr ebby ebcc ebed eber ebru ebur ecbc ecbe eccb eccc ecce ecdc eced ecrc ecrr ecru ecyd eddc edde eddy ede- eder edru educ edur eeby eede eedu eeee eerc eery erbb erbe ercc erce erde ereb erec ered erer errc erre erub eruc erur eryc erye eubc eucd eude euer eur- eurc eure eury eyeb eyec eyed eyer eyey eyre eyry eyyr rbbb rbbr rcbc rccb rccc rcdc rcde rcrd rcyc rder rebb rebe rebu recc recd rece recr recu recy redc redd rede redr redu redy reeb reed rerd rere reru rery reue reuu reyd reye rred rrrr rubb rube rubu ruby ruce rudd rude rudy rued ruer rurc rurd rure ruru ruud ruyd rybe ryde rydy ryeb ryue ubbe uber ubud ucbc ucdc ucdd ucrc udbc uder urbe urcy urde urdu urdy ure- ured urey urre urry urur uuuu uyre yber ybry yccc ycee ydee ydre ye-u yedd yede yeed yeer yerb yerd yere yerr yery yeue yeye yeyr yubu yuce yude yudu yued yuer yurd yure yury yuye yuyu yyyy