knokk ko-ko kokko kokou kokyu konno konnu konyu kooky koonu kouno koyuk kukko kukok kunku kunoy kunyu kuoyu kynny kyoko nnooo no-no nokko nokon non-u nonno nonny nooky noonu nouny noyon noyou nu-nu nunky nunny nunon nunun okoyo okuku okuny onkyo onnuy onoon onyon onyou ooooo oyoko unnun uuuuu y-o-u yo-yo yokoo yokou youku youno youok youon yukky yukon yukou yunyu