c-cd cccc cccf cccl cccu ccdc ccdf ccdr ccfc ccfd ccff ccfl cclc ccoc ccod ccrc ccrf ccrl ccrt cctc cctl cctt ccuc ccut cd-r cddl cddr cdot cfcf cfcl cfco cffr cfor cfrt cftc cftl cftr clcd cldc cldr clod clof cloo clor clot clou clrd clro cltc clud clut coco coct cocu codd codl cofc coff coft col- cold coll colo colt colu cood coof cool coot cor- corc cord corf corl coro corr cort cotc coto cott cotu coud coul cour cout crcc crcr crdc crfc crfl crlf croc crod crol croo cror crot crrt crtc crtf crtl crud crut ctcf ctfc ctfo ctol ctor ctot ctrc ctrl cucc cufc cuff cufo culc culd cull culo cult curd curf curl curo curr curt cut- cutc cuto cutt dccc dccl dcct dccu dcfc dctc dddd ddlc ddoc ddot ddrc dfcc dfco dfcu dfdt dfrf dftr dlco doco doct docu dod- dodd dodo doff dold dolf doll dolo dolt dolu dood doof dool door doot dorc dord dorf doro dorr dort doru dotd doto dott douc doud douf doul dour dout drfc drod drof drol drot drou drut druu dtcc dtfc dtor dtot dtrl duco duct dudd dudo dudu dufc duff dufu dulc dull dulo dult dulu duo- duro durt duru duul duur duut fccf fcot fcto fdlr fdoc fdot fdtc fdtl ffcc ffff ffrr fftf flcl fldr floc flod floo flor flot flou flud fluf fluo flur foco fofo folc fold foll folo folr folt food foof fool foot for- ford forl foro forr fort foto fott foud foul four fout frcc frfc frol frot frou ft-c ft-l ftcd ftfc ftuc fuc- fuct fudd fufc fuff fufu full fulu fuor fur- furl furo furr furt futo futu lccc lcdd lcdr lcfc lcfr lcor lcrd lcrl lctl lcto ldcf lfcc lfrd llcc lldc lllc llll lloc llod lloo llud locc loco locu loff loft lold loll lolo looc lood loof lool loor loot lord loro lotd lotl loto lotr lott loud loul lour lout louu lrdd lrfc lroc lrrc lrrr ltcc ltfc lttc lttr ltuc ludd ludo luff luft lufu lull lulu lurd lurt occc occt oclc ocrl ocro ocrr oct- octo ocul ocur oddd odoo odor odot odou odrl odtu odur ofcl ofcr ofdr off- offc offo offr offu ofor olcc ollo olof olor olot oltu olur oocr ooff oold oolo oooo oord oort orco ordo ordu orff orfu orlo orlu oro- orof oror orot orro ortc orto otcd otcl otfc oto- otof otoo otor otro otto ottu otur oucc oudc oufc ouff ould oulu our- ouro ourt out- outo ouu- rccc rcdc rcfc rcrd rctc rdoc rffc rffl rftc rldt rocc roco rodd rodo rofc roff rofl rofo rold rolf roll rolo rolt rood roof rool roor root rorc roro rort roru rotc rotl roto rotr rott roud rouf roul rout rrfc rrrr rtcc rtdt rtfc rtlt ruct rudd rudl rudo rufc ruff rufo ruft rull rulo rurc rurd ruro ruru rutl ruto rutt rutu ruud tccc tccu tcdd tcfc tctc tcul tdff tdor tfcu tfdc tfot tftc tlco tldr toco todd todo todt todu toff tofo toft tofu tol- told toll tolo tolt tolu tood toof tool toor toot torc tord torf toro torr tort toru totc totd toto totr tott toul tour tout trcc trcl trfc trfd trfr troc trod troo trot trou trtc trtr truc trud trut truu ttfc ttff tttt ttul tucc tuco tudu tufc tuff tufo tuft tufu tull tulo tulu tuor turc turd turf turo turr turt turu tutl tuto tutt tutu tuuo ucdc ucdd ucrc ucut udoo udot ufcu ulcc ulco ulft ullo ullr ulo- uloc ulto ultt ulul uocc uofl uofo uolc uor- urdu urff urft uro- urol uroo urur urut utfo utor utto uttu uulu uuoc uutf uuuu