bbbb bboy bbpr bbrc bbyo bcbc bcbp bccc bcor bcpp bobb bobo boby boco boob booc boop boor bopp bor- boro borr bory boyo bpcp bprc brcb brob broc broo bror brrr bry- bryo byob byoc byop c-bo cbbc cbcc cbcp cbcr cbpc cbpp cbry ccbc cccb cccc cccp ccob ccoc ccpp ccpr ccrc ccrp cobb cobo coby coco cocp coob coop copo copp copr copy cor- corb corc coro corp corr cory coyo coyr cpbc crbc crcc crcr crob croc croo crop cror croy crpc cry- cryb cryo cybb cybc cybo cyc- cycb cycc cypc cyy- cyyc obbo obby obor oboy obro ocbc occc ocpp ocro ocrr ooby oocr oooo oory opo- opor oppo oppy opry orbb orbo orby orco oro- oror oroy orpc orro orry pbcc pboc pcbc pccc pcpb pcpp pcrc pobo poco poop poor pop- popc popo popp popy porb porc poro porr pory poyo poyr ppcc pppo pppp pprc prbc prcc prcp pro- prob proc proo prop pyo- pypy pyr- pyro pyry rbbb rbbr rcbc rcbo rccb rccc rcpo rcyc rob- robb robo roby rocc roco roob roop roor ropo ropy rorc roro rory rpob rpyc rrrr rybp ryob ybor ybry yccc yobo yoop yopo yopy yoro yory yoyo ypcc yyyy