c-cd cccc cccl cccp cccu ccdc ccdp ccdr cclc ccoc ccod ccpl ccpp ccpr ccrc ccrl ccrp ccuc ccup cd-r cddl cddr clcd cldc cldr clod cloo clop clor clou clpp clrd clro clud coco cocp cocu codd codl col- cold coll colo colp colu cood cool coop copd copo copp copr cor- corc cord corl coro corp corr coud coul coup cour cpcu cpdl cplc cppd crcc crcr crdc croc crod crol croo crop cror crpc crud crup cucc culc culd cull culo culp cupl cupo cupp cupr curd curl curo curr dccc dccl dccp dccu dcop dcpl dcpo dcup dddd ddlc ddoc ddpo ddrc dlco doco docu dod- dodd dodo dold doll dolo dolp dolu dood dool doop door dopo dopp dopr dorc dord doro dorp dorr doru douc doud doul doup dour dpcp dpll dppc drod drol drop drou drup druu duco dudd dudo dudu dulc dull dulo dulu duo- dupo duro duru duul duur lccc lcdd lcdp lcdr lcor lcpc lcpd lcpl lcrd lcrl lddp ldpc llcc lldc lldp lllc llll lloc llod lloo llud locc loco locu lold loll lolo looc lood lool loop loor lopp lopu lord loro loud loul loup lour louu lpod lppl lprp lrdd lroc lrpu lrrc lrrr ludd ludo lull lulu lupo lupu lurd luup occc oclc ocpd ocpp ocrl ocro ocrr ocul ocur oddd odoo odop odor odou odrl odrp odur olcc ollo olor olpc olur oocr oold oolo oooo oord opo- opor oppo orco ordo ordu orlo orlu oro- oror orpc orro orup oucc oudc ould oulu our- ouro ouu- pccc pccl pcll pclo pcod pcpp pcrc pcrd pcrl pdcp pdlc pdoc pdpr pdrc plcc ploc plod ploo plop plou plpp plud plup plur pocd poco pod- podd podo podu pold poll polo polu pood pool poop poor pop- popc popo popp porc poro porr poud poul poup pour ppcc ppcd pplo ppod pppd pppo pppp pprc ppru ppur prcc prcd prcp prlr pro- proc prod prol proo prop prou prpd prrd prud pruu pudo pudu pull pulo pulp pulu pupl pupu pur- purl puro purp purr puru puuc rccc rcdc rcpd rcpo rcrd rdoc rdpc rocc roco rodd rodo rold roll rolo rolp rood rool roop roor ropo rorc roro roru roud roul roup rpdp rrrr rudd rudl rudo rudp rull rulo rupp rurc rurd ruro rurp ruru ruud u-rp uccp ucdc ucdd ucrc udoo udop udpd ulcc ulco ullo ullr ulo- uloc ulul uocc uolc uor- updo uplo upor uppc uppp uppu upup urdu uro- urol uroo urpo urup urur uucp uulu uuoc uuuu