cccc cccp cccu ccoc ccpp ccpr ccrc ccrp ccuc ccup coco cocp cocu coop copo copp copr copy cor- corc coro corp corr cory coup cour couy coyo coyr cpcu crcc crcr croc croo crop cror croy crpc crup cry- cryo cucc cupo cupp cupr curo curr cury cuy- cuyo cuyp cuyr cyc- cycc cypc cyy- cyyc occc ocpp ocro ocrr ocur oocr oooo oory opo- opor oppo oppy opry orco oro- oror oroy orpc orro orry orup oucc our- ouro ouu- ouyr oyou pccc pcpp pcrc poco poop poor pop- popc popo popp popy porc poro porr pory poup pour pouy poyo poyr ppcc pppo pppp pprc ppru ppur prcc prcp pro- proc proo prop prou pruu puoy pupu pupy pur- puro purp purr puru pury puuc puy- puyo pyo- pypy pyr- pyro pyry rccc rcpo rcyc rocc roco roop roor ropo ropy rorc roro roru rory roup rouy rpyc rrrr ruoy rupp rupy rurc ruro rurp ruru u-rp uccp ucrc uocc uor- upor uppc uppp uppu uppy upup urcy uro- uroo urpo urry urup urur uucp uuoc uuuu yccc yoop yopo yopy yoro yory youp your yoyo ypcc yury yuyu yyyy