c-cd cccc cccl cccu ccdc ccdr cclc ccoc ccod ccrc ccrl ccuc cd-r cddl cddr clcd cldc cldr clod cloo clor clou clrd clro clud coco cocu codd codl col- cold coll colo colu cood cool cor- corc cord corl coro corr coud coul cour crcc crcr crdc croc crod crol croo cror crud cucc culc culd cull culo curd curl curo curr dccc dccl dccu dddd ddlc ddoc ddrc dlco doco docu dod- dodd dodo dold doll dolo dolu dood dool door dorc dord doro dorr doru douc doud doul dour drod drol drou druu duco dudd dudo dudu dulc dull dulo dulu duo- duro duru duul duur lccc lcdd lcdr lcor lcrd lcrl llcc lldc lllc llll lloc llod lloo llud locc loco locu lold loll lolo looc lood lool loor lord loro loud loul lour louu lrdd lroc lrrc lrrr ludd ludo lull lulu lurd occc oclc ocrl ocro ocrr ocul ocur oddd odoo odor odou odrl odur olcc ollo olor olur oocr oold oolo oooo oord orco ordo ordu orlo orlu oro- oror orro oucc oudc ould oulu our- ouro ouu- rccc rcdc rcrd rdoc rocc roco rodd rodo rold roll rolo rood rool roor rorc roro roru roud roul rrrr rudd rudl rudo rull rulo rurc rurd ruro ruru ruud ucdc ucdd ucrc udoo ulcc ulco ullo ullr ulo- uloc ulul uocc uolc uor- urdu uro- urol uroo urur uulu uuoc uuuu