cccc cccp cccu ccoc ccpp ccpr ccrc ccrp ccrt cctc cctt ccuc ccup ccut coco cocp coct cocu coop coot copo copp copr copt cor- corc coro corp corr cort cotc coto cott cotu coup cour cout cpcu cprt cptp cptr crcc crcr croc croo crop cror crot crpc crrt crtc crtp crup crut ctcp ctor ctot ctpo ctpp ctrc ctrp cucc cupo cupp cupr curo curr curt cut- cutc cuto cutt occc occt ocpp ocro ocrr oct- octo ocur oocr oooo oort ootp opo- opor oppo opto orco oro- oror orot orpc orro ortc orto orup oto- otoo otor otpp otro otto ottu otur oucc our- ouro ourt out- outo ouu- pccc pcpp pcrc poco poop poor poot pop- popc popo popp popt porc poro porr port potc poto pott potu poup pour pout ppcc pppo pppp pprc ppru pptt ppur prcc prcp pro- proc proo prop prot prou prtc prtp prtr prut pruu ptcc ptop pttc pupu pur- puro purp purr puru put- puto putt putu puuc rccc rcpo rcpt rctc rocc roco roop roor root ropo rorc roro rort roru rotc roto rotr rott roup rout rrrr rtcc rttp ruct rupp rupt rurc ruro rurp ruru ruto rutt rutu tccc tccu tcpo tctc toco toor toot top- topo topp topt topu torc toro torp torr tort toru totc toto totr tott toup tour tout tpcp tppp tppr tptp tptr tput trcc troc troo trop trot trou trpc trpp trtc trtr truc trut truu ttcp ttop tttt tucc tuco tuor tupo tupu turc turo turp turr turt turu tuto tutt tutu tuuo u-rp uccp ucrc ucut uocc uor- upor uppc uppp uppu upto upup uro- uroo urpo urup urur urut utor utto uttu uucp uuoc uuuu