cccc cccf cccl cccu ccfc ccff ccfl cclc ccnc ccnf ccnu ccny ccoc ccuc cfcf cfcl cfcn cfco cfcy cfln cfun cfyn clof clon cloo clou cloy clun cly- cnco coco cocu cofc coff col- coll coln colo colu coly con- conc conf conn cono cony coof cool coon coul coun couy coyf coyl coyn coyo cucc cucn cufc cuff cufo culc cull culo cuno cuny cuon cuy- cuyl cuyo cyc- cycc cycl cyl- cylc cyll cyn- cyno cyon cyul cyun cyy- cyyc cyyn fccf fcnl ffcc ffff ffun flcl flnc floc flon floo flou floy fluf fluo fluy fnlc fnuf foco fofo folc foll folo foly fono fony foof fool foon foul foun foyl foyn fuc- fufc fuff fufu full fulu funf fuyl fuyu fynn lccc lcfc lfcc llcc lllc llll lloc lloo llyn locc locn loco locu loff lofn loll lolo loly lono looc loof lool loon loul loun louu loyn lucy luff lufu lull lulu lunn luno luny lyc- lyco lyff lyfy lyly lync lynn lyo- lyon lyun lyyf lyyn nccc nccf nccn nccu ncfc nclc ncln ncnc ncoc nfcu nfff nfon nfyc nlcc nlcf nnnn nocl noco nolf noll nolo non- nonn nono nonu noo- nool noon nooo noul noun noyl noyo nucu nuff null nunc nunn nuno nuny nuoc nuon nycc nyco nycy nyll nyny nyon nyul occc occn oclc ocon ocul ofcl off- offc offo offu offy ofno olcc ollo olly olof olon olyf onc- oncf onco onlf only onno onon onoy ooff oofy oolo oooo oucc oufc ouff oulu oun- ouu- oyly oyon oyou oyun ucon ufcu ulcc ulco ullo ully ulno ulo- uloc ulul uncc uncf uncl unco unlf unno unon uocc uofl uofo uolc uulu uuno uuoc uuuu uuyn yccc ynol ynon ynou yoff yoll yolo yoly yono yoof yool yoon youf youl yoyn yoyo yuff yufu yulo yulu yuny yuon yuyu yyff yyyy