cccc cccp cccu ccnc ccnp ccnu ccoc ccpn ccpp ccuc ccup ckck ckco cknc ckoc ckoo ckpc cnco cncp cock coco cocp cocu cok- coko con- conc conk conn cono cook coon coop copo copp couk coun coup cpcu cucc cuck cucn cucq cuk- cuno cunp cuon cupo cupp kccc kcck kccu kckc kckk kckn kcko kcno kcnp kcnq kcon kcou kcpc kcpn kcpo kcpq kcpu kcqq kcuk kcup kkck kkcn kkco kkcq kkkk kknn kkno kknu kkon kkoo kkpc kkpk kkpn kkqq kkup kkuu knck kncn knco kncq kncu knkk knnk knoc knok knon knop knou knpc knpq knuk knuq kock kocn kocp kokc kokk kokn koko kokp koku konc konk kono konp konq kooc kook koon kooo koop kooq koou kopn kopp kopu kouu kpcc kpkk kpnc kpno kpnp kpoc kpok kpoo kpop kpou kppc kppk kppo kppp kqck kqco kqkk kqnk kqnu kqpn kqqk kqqn kqqq kqup kucc kuco kucp kukk kukn kuku kunc kunk kuno kunp kunq kunu kuok kuon kuoo kuop kupu kuqo kuqq kuuk kuuu n-up nccc nccn nccp nccu ncnc ncoc ncpc ncuk nkok nnnn nock noco noko non- nonn nono nonu noo- nook noon nooo noop nopq noun noup npcc nppc nuck nucu nuku nunc nunk nunn nuno nuoc nuon nuuk occc occn ocon ocpp okcu okko okno okok okon okpo okun onc- onco onkp onno onon onpu onup ooku oooo opo- opon oppo oucc oun- ouu- pccc pcpn pcpp pcun pnkp pnon pnpo pnpp pnup pock poco poko poku ponc ponk pono ponp pook poon poop pop- popc popo popp pouk poun poup ppcc pppn pppo pppp pqcc puck puku punc punk puno punu pupu puuc qoop qqqq qucu qunu quoc quok quon quop quu- uccp ucon ukcc ukko uknc ukok ukon ukup uncc unco uncp unkn unko unno unon unop unpc uocc upnp upon uppc uppp uppu upup uqcc uucp uuno uuoc uuuu