kkkk kknn kkno kkon kkoo kkoy kkpk kkpn kkyy knkk knnk knok knon knop knyk knyn kokk kokn koko kokp koky konk kono konp kony kook koon kooo koop kopn kopp kopy koyn koyo koyy kpkk kpky kpno kpnp kpny kpok kpoo kpop kpoy kppk kppo kppp kpyk kpyn kykk kykn kyky kyno kyok kyon kyoo kyoy kyp- kyyk kyyo kyyy nkok nnnn noko non- nonn nono noo- nook noon nooo noop noyo nyko nyny nyon okko okno okny okok okon okpo okyo onkp onno onon onoy ooky oooo opo- opon oppo oppy oyon pnkp pnon pnpo pnpp poko poky ponk pono ponp pony pook poon poop pop- popo popp popy poyn poyo pppn pppo pppp pykk pyn- pyo- pyon pypy ykko ynon yoko yoky yonk yono yook yoon yoop yopo yopy yoyn yoyo yyyy