cccc cccf cccl cccp cccu ccfc ccff ccfl cclc ccoc ccpl ccpp ccpr ccrc ccrf ccrl ccrp ccuc ccup cfcf cfcl cfco cffr cfor cfpl cfpo cfpr cfrp clof cloo clop clor clou clpp clro coco cocp cocu cofc coff col- coll colo colp colu coof cool coop copo copp copr cor- corc corf corl coro corp corr coul coup cour cpcu cpff cplc crcc crcr crfc crfl crlf croc crol croo crop cror crpc crup cucc cufc cuff cufo culc cull culo culp cupl cupo cupp cupr curf curl curo curr fccf fccp fcup ffcc ffff ffrr flcl floc floo flop flor flou fluf fluo flur foco fofo folc foll folo folr foof fool fopp for- forl foro forr foul foup four fp-c fpcc fplc fprf frcc frcp frfc frol frop frou fuc- fufc fuff fufu full fulu fuor fur- furl furo furr lccc lcfc lcfr lcor lcpc lcpl lcrl lfcc llcc lllc llll lloc lloo locc loco locu loff loll lolo looc loof lool loop loor lopp lopu loro loul loup lour louu lpfp lppl lprp lrfc lroc lrpu lrrc lrrr luff lufu lull lulu lupo lupu luup occc ocfp oclc ocpp ocrl ocro ocrr ocul ocur ofcl ofcr off- offc offo offr offu ofor olcc ollo olof olor olpc olur oocr ooff oolo oooo opo- opor oppo orco orff orfu orlo orlu oro- orof oror orpc orro orup oucc oufc ouff oulu our- ouro ouu- pccc pccl pcfc pcll pclo pcpp pcrc pcrf pcrl pfff pffr plcc plff ploc ploo plop plou plpp plup plur poco poff poll polo polu poof pool poop poor pop- popc popo popp porc poro porr pouf poul poup pour ppcc pplo pppo pppp pprc pprf ppru ppur prcc prcf prcp prfc prlr pro- proc prof prol proo prop prou pruf pruu puff pull pulo pulp pulu pupl pupu pur- purl puro purp purr puru puuc rccc rcfc rcpo rffc rffl rocc roco rofc roff rofl rofo rolf roll rolo rolp roof rool roop roor ropo rorc roro roru rouf roul roup rpfc rpof rrfc rrrr rufc ruff rufo rull rulo rupp rurc ruro rurp ruru u-rp uccp ucrc ufcu ulcc ulco ullo ullr ulo- uloc ulul uocc uofl uofo uolc uor- uplo upor uppc uppp uppu upup urff uro- urol uroo urpo urup urur uucp uulu uuoc uuuu