c-cd cccc cccl cccu ccdc cclc ccoc ccod ccuc cddl ckck ckcl ckco ckdo ckdu ckoc ckoo clcd cldc clod clok cloo clou clud cock coco cocu codd codl cok- coko col- cold colk coll colo colu cood cook cool coud couk coul cucc cuck cuk- culc culd culk cull culo dccc dccl dccu dddd ddlc ddoc dkdc dlco dock doco docu dod- dodd dodo doko dold dolk doll dolo dolu dood dook dool douc doud douk doul duck duco dudd dudo dudu duku dulc dull dulo dulu duo- duul k-lo kccc kccd kcck kccl kccu kcdc kcdd kcdu kckc kckk kckl kcko kclc kclk kcll kclu kcol kcou kcuk kcul kdcc kdcd kdco kddc kddd kddk kddl kdkd kdkk kdko kdlc kdld kdll kdlo kdoc kdok kduc kkcd kkck kkcl kkco kkdc kkdd kkdl kkdo kkkk kklc kkld kkll kklo kkol kkoo kkuu klcc klcd klck klcl kldc kldd klkc klkk klkl klko kllc kllk kloc klok klol kloo klou kluk kluu kocd kock kodk kodl kodo kodu kokc kokk koko koku kolc kold kolk koll kolo kolu kooc kook kool kooo koou koul kouu kucc kucd kuco kudd kudl kudo kudu kukk kukl kuku kuld kull kulo kulu kuok kuol kuoo kuuk kuul kuuu lccc lcdd llcc lldc lllc llll lloc llod lloo llud locc lock loco locu lokk loko lold loll lolo looc lood look lool loud louk loul louu luck ludd ludo luko lull lulu luuk occc oclc ocul oddd odoo odou okcu okko oklo okok okol okul olcc ollo ooku oold oolo oooo oucc oudc ould oulk oulu ouu- ucdc ucdd udoo uduk ukcc ukko ukok ulcc ulco ullo ulo- uloc uluk ulul uocc uolc uulu uuoc uuuu