oboi obon oboy obuh ocab ocac ocan ocbc occa occc occi occn ocha ochi ocin ocna ocon ohai ohan ohau ohba ohcc ohhi ohho ohia ohio ohno ohob ohoh ohyo oiba oici oiii oion onab onah onan onay onby onc- onca onco onha onia onic onna onni onno onon onoy ooaa ooba oobi ooby ooha ooho ooia oona oooh oooo ouac ouan oucc ouch ouii ouin oun- ouna ouu- ouya oyan oych oyon oyou oyun uabc uaca uaoc uaua ubac ubay ubba ubbi ubbo ubic ubii uboc ubon ucai ucan ucbc ucca ucci ucha uchi ucho ucin ucio ucon ucua uhna uhno uhoh uhuh uica uiya unaa unac unai unan unau unca uncc unch unci unco unha uni- unia unic unii unin unio unna unni unno unon uocc uuni uuno uuoc uuuu uuyn uyan uyin yaan yaba yabo yacc yaco yacy yahi yahn yaho yahu yain yana yani yann yano yaoi yaou yaya yayo yayu ycab ycao yccc ycch yhon yhou yian yina ynca ynch ynoa ynoh ynon ynou yoan yoba yobi yobo yoch yohn yoho yona yoni yono yoon youa youb youi yoyn yoyo yuan yuba yubu yuca yuhi yuin yuna yuny yuon yuya yuyu yyyy