b-u bbb bbc bbd bbk bbo bbr bbu bby bcb bcc bcd bck bco bcr bcu bcy bdb bdc bdd bdk bdo bdr bdu bdy bkb bkc bkk bko bkr bob boc bod bok boo bor bou boy brb brd brk bro brr bru bry bub buc bud buk buo bur buu buy by- byc byd byk byo byr byu c-- cbb cbc cbd cbk cbo cbr cbu cby ccb ccc ccd cck cco ccr ccu cdb cdc cdd cdk cdo cdr cdu cdy ckb ckc ckd cko cky co- cob coc cod cok coo cor cou coy crb crc crd crk cro crr cru cry cub cuc cud cuk cuo cur cuu cuy cyb cyc cyd cyk cyo cyr dbb dbc dbd dbk dbo dbr dbu dby dcb dcc dcd dck dco dcr dcu ddb ddc ddd ddk ddo ddr ddu ddy dkb dkc dkk dko dkr dku dob doc dod dok doo dor dou doy drb drc drd drk dro drr dru dry dub duc dud duk duo dur duy dy- dyb dyc dyd dyk dyo dyr dyu dyy kbb kbc kbd kbk kbo kbr kbu kcb kcc kcd kck kcr kcu kdb kdc kdk kdo kdr kdu kdy kkb kkc kkk kkr kku kky kob koc kod kok koo kor kou koy krc krd krk kro krr kru kry kub kuc kud kuk kur kuu kuy kyc kyd kyo kyr kyu ob- obb obc obd obk obo obr obu oby oc- ocb occ ocd ock oco ocr ocu odb odc odd odo odr odu okb okc okd okk oko okr oku oo- oob ooc ood ook ooo oor or- orb orc ord ork oro orr oru ory ou- ouc oud ouk ouo our oyd oyo rbb rbc rbd rbk rbo rbr rbu rcb rcc rcd rco rcr rcu rdb rdc rdd rdo rdr rdu rdy rkb rkc rkk rko rku rky rob roc rod rok roo ror rou roy rrb rrc rrd rrk rrr rru rub ruc rud ruk ruo rur ruu ruy ry- ryc ryd ryk ryo ryr ryu ryy ubb ubc ubk ubo ubr ubu uby ucb ucc ucd uck uco ucr ucu udb udc udd udk udo udr udu ukb ukc ukk ukr uku uob uoc uod uok uoo uor ur- urb urc urd urk uro urr uru ury uuc uur uuu uyc uyo uyu ybc ybr yby ycc ycd yco ycu ycy ydo ydy ykk yob yoc yod yok yoo yor you yoy yrc yro yru yud yuk yuo yur yuu yuy yyb yyc yyu yyy

bbbb bbdd bbdo bboy bbrc bbyo bcbc bccc bcor bcru bcuc bd-r bdbc bddc bdry bkcy bkry bobb bobo bobu boby bock boco bocu bodb bodo bodu body boko boku boob booc bood book boor bor- bord bork boro borr boru bory boud bouk bour bouy boyd boyo brcb brdo brdy brkb brob broc brod brok broo bror brou brrr bruc brud bry- bryd bryk bryo bubb bubo bubu bucc buck buco bucu budb budd budo budu budy bukk buko buku buky buoy bur- burb burd burk buro burr buru bury buyo buyu byck byob byoc byod byrd byrk byyd c-bo c-cd cbbc cbcc cbcr cbcu cbdb cbdc cbdo cbko cbkr cbrd cbry ccbc cccb cccc cccu ccdc ccdr ccob ccoc ccod ccrc ccuc cd-r cddb cddr ckbc ckck ckco ckcy ckdo ckdu ckob ckoc ckoo ckor ckoy ckrc ckrd ckry cobb cobo cobu coby cock coco cocu codd cody cok- coko coky coob cood cook cor- corb corc cord cork coro corr cory coub coud couk cour couy coyo coyr crbc crbu crcc crcr crdc crkc crob croc crod crok croo cror croy crub crud cruk cry- cryb cryo cub- cubb cuby cucc cuck cuk- curb curd curo curr cury cuy- cuyo cuyr cybb cybc cybo cyc- cycb cycc cyrk cyy- cyyc d-bo dbcc dboy dc-y dcbc dccb dccc dccu dcdb dcrk dddd ddoc ddrc ddry ddub dkdc dobb dobu doby dock doco docu dod- dodd dodo dody doko doky doob dood dook door dorc dord dork doro dorr doru dory doub douc doud douk dour douy doyk doyo drbc drob drod drou droy drub druk druu dry- dub- dubb dubc dubu duby duck duco dudd dudo dudu duku duo- durk duro duru dury duur duyr dybu dycd dyck dycu dydd dyko dykr dyku dyo- dyok dyoo dyor dyou dyr- dyrb dyrc dyrk dyro dyru dyur dyyr kbbb kbbc kbbd kbbk kbbo kbbr kbbu kbcb kbck kbco kbcr kbcu kbcy kbdb kbdo kbdr kbdy kbkb kbkk kbko kbkr kbky kbob kboc kbod kbok kboo kbrb kbrc kbrd kbrk kbro kbru kbry kbub kbuc kbud kbuk kbur kbuu kbuy kbyb kbyo kbyr kbyu kcbc kcbd kcbk kcbr kcbu kccb kccc kccd kcck kccr kccu kccy kcdc kcdd kcdr kcdu kcdy kckc kckk kcko kckr kcky kcob kcor kcou kcrc kcro kcrr kcru kcry kcub kcuk kcyk kcyy kdbb kdbr kdcc kdcd kdco kdcr kddb kddc kddd kddk kddr kdkb kdkd kdkk kdko kdkr kdoc kdok kdrb kdro kdry kdub kduc kdur kdyk kkbb kkbd kkbo kkbr kkcb kkcd kkck kkco kkcr kkcy kkdc kkdd kkdo kkdy kkkk kkob kkoo kkor kkoy kkrb kkrc kkrk kkro kkrr kkuu kkyc kkyy kobb kobc kobk kobo kobr kobu koby kocb kocd kock kodk kodo kodu kody kokb kokc kokk koko kokr koku koky koob kooc kook kooo koor koou korb korc kord kork koro korr koru koub kour kouu koyo koyy krbb krbd krbk krbr krcb krcc krcd krco krcu krdc krdd krdo krdr krdu krdy krkc krkd krkk krko krkr krku krky krob kroc krod krok kroo kror kroy krrb krrc krrk krro krrr krry kruc kruk krur kryd kryk kryo kryy kubb kubc kubd kubo kubr kubu kuby kucb kucc kucd kuco kucr kudd kudo kudu kukk kuku kuky kuok kuoo kurb kurd kurk kuro kurr kuru kury kuub kuuk kuur kuuu kuyo kuyu kuyy kybb kybc kybo kybr kyby kycc kyck kycr kydd kydo kydy kykc kykd kykk kykr kyky kyok kyoo kyor kyoy kyrc kyrk kyro