cccc cccl cccp cclc ccoc ccpl ccpp ccpr ccrc ccrl ccrp ccrt cctc cctl cctt cloo clop clor clot clpp clro cltc coco cocp coct col- coll colo colp colt cool coop coot copo copp copr copt cor- corc corl coro corp corr cort cotc coto cott cplc cprt cptp cptr crcc crcr croc crol croo crop cror crot crpc crrt crtc crtl crtp ctcp ctol ctor ctot ctpo ctpp ctrc ctrl ctrp lccc lcor lcpc lcpl lcrl lctl lcto llcc lllc llll lloc lloo locc loco loll lolo looc lool loop loor loot lopp loro lotl loto lotr lott lppl lprp lroc lrrc lrrr ltcc lttc lttr occc occt oclc ocpp ocrl ocro ocrr oct- octo olcc ollo olor olot olpc oocr oolo oooo oort ootp opo- opor oppo opto orco orlo oro- oror orot orpc orro ortc orto otcl oto- otoo otor otpp otro otto pccc pccl pcll pclo pcpp pcrc pcrl plcc ploc ploo plop plot plpp pltt poco poll polo polt pool poop poor poot pop- popc popo popp popt porc poro porr port potc poto pott ppcc pplo pppo pppp pprc pptt prcc prcp prlr pro- proc prol proo prop prot prtc prtp prtr ptcc ptcl ptol ptop pttc rccc rcpo rcpt rctc rocc roco roll rolo rolp rolt rool roop roor root ropo rorc roro rort rotc rotl roto rotr rott rrrr rtcc rtlt rttp tccc tcpo tctc tlco toco tol- toll tolo tolt tool toor toot top- topo topp topt torc toro torp torr tort totc toto totr tott tpcp tpol tppp tppr tptp tptr trcc trcl troc troo trop trot trpc trpp trtc trtr ttcp ttop tttt