cccc cccp cccu ccoc ccpp ccpr ccrc ccrp ccuc ccup coco cocp cocu coop copo copp copr cor- corc coro corp corr coup cour cozz cpcu crcc crcr crcz croc croo crop cror croz crpc crup cruz cucc cupo cupp cupr curo curr cuzo occc ocpp ocro ocrr ocur oocr oooo opo- opor oppo orco oro- oror oroz orpc orro orup orzo orzu oucc our- ouro ouu- ouzo pccc pcpp pcrc poco poop poor pop- popc popo popp porc poro porr porz poup pour pozo ppcc pppo pppp pprc ppru ppur prcc prcp pro- proc proo prop prou proz pruu pupu pur- puro purp purr puru puuc puzo rccc rcpo rocc roco roop roor rooz ropo rorc roro roru roup rouz rozz rrrr rupp rurc ruro rurp ruru u-rp uccp ucoz ucrc uocc uor- upor uppc uppp uppu upup uro- uroo urpo urup urur uruz uucp uuoc uuuu z-ro zoco zoo- zoop zorc zoro zouc zozo zozu zuoz zurr zuru zuzu zzzz