a-do a-ya a-yo aaaa aaab aaad aaba aabb aabd aaby aada aaoo abaa abab abad abay abb- abba abbb abbo abby abda abdo abdy aboa abob abod aboo aboy abyy adaa adab adad adao aday adba adda addd addo addy adob adod adoo adya aoba ay-o ayad ayao ayay ayda ayod ayoo ayya baaa baad baba babb babo baby bada badb badd bado bady baya bayo bbad bbay bbbb bbdd bbdo bboy bbyo bday boab boad boba bobb bobo boby boda bodb bodo body boob bood boya boyd boyo byoa byob byod byyd d-bo daab daad daba dabb dabo dada dado dady daya dayo dboy dday dddd doab doba dobb doby dod- doda dodd dodo dody doob dood doya doyo dya- dyab dyad dydd dyo- dyoo obad obay obba obbo obby oboy oday odbo odda oddd oddy odoo ooaa ooba ooby ooda oooo oyda yaba yabo yada yado yaya yayo ydad yday yoba yobo yoda yodo yood yoyo yyyy