cccc cccf cccl cccu ccfc ccff ccfl cclc ccoc ccrc ccrf ccrl ccuc cfcf cfcl cfco cfcy cffr cfor cfry clof cloo clor clou cloy clro cly- coco cocu cofc coff col- coll colo colu coly coof cool cor- corc corf corl coro corr cory coul cour couy coyf coyl coyo coyr crcc crcr crfc crfl crlf croc crol croo cror croy cry- cryo cucc cufc cuff cufo culc cull culo curf curl curo curr cury cuy- cuyl cuyo cuyr cyc- cycc cycl cyl- cylc cyll cyrl cyul cyy- cyyc fccf ffcc ffff ffrr flcl floc floo flor flou floy fluf fluo flur fluy foco fofo folc foll folo folr foly foof fool for- forl foro forr foul four foyl frcc frfc frol frou fuc- fufc fuff fufu full fulu fuor fur- furl furo furr fury fuyl fuyu fyry lccc lcfc lcfr lcor lcrl lfcc llcc lllc llll lloc lloo llyr locc loco locu loff loll lolo loly looc loof lool loor loro lory loul lour louu lrfc lroc lrrc lrrr lrry lucy luff lufu lull lulu lury lyc- lyco lyff lyfy lyly lyo- lyro lyyf occc oclc ocrl ocro ocrr ocul ocur ofcl ofcr off- offc offo offr offu offy ofor olcc ollo olly olof olor olry olur olyf oocr ooff oofy oolo oooo oory orco orff orfu orlo orlu orly oro- orof oror oroy orro orry oucc oufc ouff oulu our- ouro ouu- ouyr oyly oyou rccc rcfc rcyc rffc rffl rocc roco rofc roff rofl rofo rolf roll rolo roly roof rool roor rorc roro roru rory rouf roul rouy royl rrfc rrrr rufc ruff rufo rull rulo ruly ruoy rurc ruro ruru ruyl ryff ryyf ucrc ufcu ulcc ulco ullo ullr ully ulo- uloc ulul uocc uofl uofo uolc uor- urcy urff uro- urol uroo urry urur uulu uuoc uuuu yccc yoff yoll yolo yoly yoof yool yoro yory youf youl your yoyo yrly yrof yuff yufu yulo yulu yury yuyu yyff yyyy