bbbb bbdd bbdo bcbc bccc bdbc bddc bnoc bobb bobo bock boco bodb bodo bokn boko bonc bond bonk bonn bono boob booc bood book boon c-bo c-cd cbbc cbcc cbcn cbdb cbdc cbdn cbdo cbkn cbko cbnd ccbc ccbn cccb cccc ccdc ccdn ccnb ccnc ccob ccoc ccod cddb cdnb cdnc cdon ckbc ckck ckco ckdo cknb cknc ckob ckoc ckoo cnbc cnco cndd cobb cobo cock coco codd cok- coko con- conc cond conk conn cono coob cood cook coon d-bo dbcc dcbc dccb dccc dcdb dcon dddd ddoc dkdc dnoc dobb dock doco dod- dodd dodo doko donc dond donk donn dono doob dood dook doon kbbb kbbc kbbd kbbk kbbo kbcb kbck kbco kbdb kbdn kbdo kbkb kbkk kbko kbnd kbnn kbno kbob kboc kbod kbok kbon kboo kcbc kcbd kcbk kccb kccc kccd kcck kcdc kcdd kckc kckk kckn kcko kcnb kcnd kcno kcob kcon kdbb kdbn kdcc kdcd kdco kddb kddc kddd kddk kdkb kdkd kdkk kdkn kdko kdnd kdnk kdnn kdno kdoc kdok kkbb kkbd kkbn kkbo kkcb kkcd kkck kkcn kkco kkdc kkdd kkdo kkkk kknb kknd kknn kkno kkob kkon kkoo knbb knbc knbn kncb knck kncn knco kndb kndc kndd kndk kndn kndo knkk knnb knnd knnk knob knoc knod knok knon kobb kobc kobk kobn kobo kocb kocd kock kocn kodk kodo kokb kokc kokk kokn koko konc kond konk kono koob kooc kook koon kooo nbbc nbbo nbcc nbco ncbc nccc nccn ncdc ncdn ncnc ncnd ncoc ndcc nddb nddo ndoc nkok nndb nnnn nobc nobo nock noco nodo noko non- nonn nono noo- noob nook noon nooo obbo obkb obok obon ocbc occc occn ocon odbo oddd odnb odon odoo okko okno okok okon onc- oncd onco ondo onno onod onon oooo