bbbb bboy bbrc bbyo bcbc bccc bcor bcoz bnoc bnor bnrr bobb bobo boby boco bonc bonn bono bony boob booc boon boor booz bor- born boro borr bory borz boyn boyo boyz bozo brcb brno brob broc bron broo bror broz brrr bry- bryn bryo bync byno byob byoc byon byrn bzyb bzzz c-bo cbbc cbcc cbcn cbcr cbrn cbry ccbc ccbn cccb cccc ccnb ccnc ccnr ccny ccob ccoc ccrc cnbc cnco cnnz cnrc cnrr cobb cobo coby coco con- conc conn cono cony coob coon cor- corb corc corn coro corr cory coyn coyo coyr cozy cozz crbc crcc crcr crcz crob croc cron croo cror croy croz cry- cryb cryn cryo cryz cybb cybc cybo cyc- cycb cycc cyn- cyno cyon cyy- cyyc cyyn czon czyz nbbc nbbo nbcc nbco nboy ncbc nccc nccn nccr ncnc ncoc ncor ncrc nnnn nobc nobo noco non- nonn nono noo- noob noon nooo noor nor- norb norc norn noro norr nory noyo noyz nroc nron nrrc nycc nyco nycy nyny nyon nyrb nyro nzcc nzrb obbo obby obon obor oboy obro ocbc occc occn ocon ocro ocrr onby onc- onco onno onon onor onoy onoz onzo onzy ooby oocr oooo oory oozy orbb orbo orby orco ornc orno orny oro- oron oror oroy oroz orro orry orzo oyon ozon ozzy rbbb rbbr rcbc rcbo rccb rccc rcnr rcon rcyc rnbr rnco rob- robb robo roby rocc roco ronc rono rony roob roon roor rooz rorc roro rory royn rozz rrrr rynn ryob ryon ybor ybry yccc ynon yobo yono yoon yooz yorn yoro yory yoyn yoyo yozo yron yryn yyyy z-ro zobo zoco zon- zony zoo- zoon zorb zorc zorn zoro zory zozo zzzz