bbbb bbch bbdd bbdo bboy bbrc bbyo bcbc bccc bchd bcor bd-r bdbc bddc bddh bdry bhcc bhor bhoy bobb bobo boby boch boco bodb bodh bodo body bohd boho bohr bohy boob booc bood booh boor bor- bord borh boro borr bory boyd boyo brcb brdo brdy brob broc brod broh broo bror brrr bry- bryd bryo bych byob byoc byod byrd byyd c-bo c-cd cbbc cbcc cbcr cbdb cbdc cbdo cbrd cbrh cbry ccbc cccb cccc ccdc ccdh ccdr cchr cchy ccob ccoc ccod ccrc cd-r cddb cddr chch choc chod choh choo chor choy chrb chrc chrd chro chrr chy- chyc cobb cobh cobo coby coch coco codd cody coho coob cood cooh cor- corb corc cord coro corr cory coyo coyr crbc crcc crcr crdc crob croc crod croh croo cror croy cry- cryb cryo cybb cybc cybo cyc- cycb cycc cyy- cyyc d-bo dbcc dboy dc-y dcbc dccb dccc dcdb dddd ddoc ddrc ddry dhod dhor dobb doby doch doco dod- dodd dodo dody dohc dohr doob dood door dorc dord doro dorr dory doyo drbc drob drod droh droy dry- dycd dych dydd dyhb dyhh dyhr dyo- dyoo dyor dyr- dyrb dyrc dyro dyyr hbcd hboc hcbc hccb hccc hcch hcdr hcrd hdoc hdod hdyd hhhh hobo hoby hoch hocr hodh hodr hody hoho hood hoor horc hord horo horr hory hrdc hrob hrod hrrc hryb hybo hydd hydr hyo- hyrd obbo obby obor oboy obrh obro ocbc occc ocro ocrr odbo oddd oddy odoh odoo odor odry odyr ohcc ohho ohob ohoh ohyo ooby oocr ooho oooh oooo oord oory orbb orbo orby orch orco ordo oro- oror oroy orro orry oych rbbb rbbr rboh rcbc rcbo rccb rccc rcdc rchb rcrd rcyc rdoc rhob rhoc rhod rhoh rhyd rob- robb robo roby rocc roch roco rodd rodo rody rohr rohy roob rood roor rorc roro rory royd rrrr rych rydy ryhb ryob ryoh ybor ybry yccc ycch yhyd yobo yoch yodh yodo yoho yood yord yoro yory yoyo yrho yyyy