bbbb bbci bbdd bbdo bboy bbyo bcbc bccc bcci bdbc bddc bdii bibb bibi bibo bicc bici bick bico bidi bido biko bio- bioc bioi bkcy bobb bobi bobo boby bock boco bodb bodi bodo body boi- boid boii boki boko boob booc bood book boyd boyi boyo byck byik byki byob byoc byod byoi byyd c-bo c-cd cbbc cbcc cbdb cbdc cbdi cbdo cbid cbko ccbc cccb cccc ccci ccdc ccdi ccic ccid ccii ccob ccoc ccod cddb cdic cdii cdio cibc cibi cibo cicc cici cico cidc cidi ciid ciii ciko ciob ckbc ckbi ckck ckco ckcy ckdo ckob ckoc ckoi ckoo ckoy cobb cobi cobo coby cock coco codd codi cody cok- coko coky coob cood cook coyo cybb cybc cybi cybo cyc- cycb cycc cyy- cyyc d-bo dbcc dboy dc-y dcbc dccb dccc dcci dcdb dcii dcio dddd ddoc dibb dibo diby dici dick dico dicy didi dido didy diii diki diko dioc diyi dkdc dkid dobb dobi doby doci dock doco dod- dodd dodi dodo dody doid doki doko doky doob dood dook doyk doyo dycd dyck dydd dyio dyko dyo- dyok dyoo i-by ibdo ibid ibyi icbc icbd iccb iccc icci icco icdc icdd icky icoc icod iddo idic idid idio idoc iicd iiii iiio iioi iioo ikid ikki ikko ikky ikoo iobi ioby ioci iod- iodd iodo ioii ioio ioko iooi iooo k-ci k-id kbbb kbbc kbbd kbbi kbbk kbbo kbcb kbci kbck kbco kbcy kbdb kbdi kbdo kbdy kbib kbic kbid kbik kbio kbiy kbkb kbkk kbko kbky kbob kboc kbod kboi kbok kboo kbyb kbyi kbyo kcbc kcbd kcbi kcbk kccb kccc kccd kcci kcck kccy kcdc kcdd kcdi kcdy kcic kcid kcii kckc kckk kcko kcky kcob kcyk kcyy kdbb kdbi kdcc kdcd kdco kddb kddc kddd kddi kddk kdic kdio kdkb kdkd kdkk kdko kdoc kdok kdyk kibb kibc kibi kibo kiby kicb kicc kicd kick kicy kidb kidd kidi kidk kido kidy kiic kiid kiii kiik kikc kikd kiki kikk kiko kioc kiod kioi kiok kioo kiyi kiyk kkbb kkbd kkbi kkbo kkcb kkcd kkci kkck kkco kkcy kkdc kkdd kkdo kkdy kkic kkid kkik kkkk kkob kkoo kkoy kkyc kkyy kobb kobc kobi kobk kobo koby kocb kocd koci kock kodi kodk kodo kody koii kokb kokc koki kokk koko koky koob kooc kooi kook kooo koyo koyy kybb kybc kybi kybo kyby kycc kyck kydd kydo kydy kykc kykd kykk kyky kyok kyoo kyoy kyyi kyyk kyyo kyyy obbo obby obid obkb oboi obok oboy ocbc occc occi odbo odci oddd oddi oddy odic odio odoo oici oick oido oiii oiko okby okic okko okok okyo oobi ooby oodi ooid ooky oooo yccc yidi ykid ykko yobi yobo yock yodo yoik yoki yoko yoky yood yook yoyo yyyy