a-ya a-yo aaaa aaab aaam aaba aabb aabm aaby aama aamb aamo aaoo abaa abab abam abax abay abb- abba abbb abbo abby abma abmb aboa abob aboo abox aboy abyy amaa amam amax amay amb- amba ambo ambx amby amm- amma ammo amob amoo amoy amya aoba aoma axo- axoa axxo ay-o ayam ayao ayay ayma ayoo ayya ba-x baaa baam baba babb babm babo baby bama bamb bamm baya bayo bbay bbbb bbox bboy bbyo bmaa boab boba bobb bobo boby boma bomb bomy boob boom boox boxa boxy boya boyo byam byoa byob maaa maam maba mabo maby mama mamo mamy maxx maxy may- maya mayo mbam mbba mbox mmaa mmab mmmm mmxx mmyy moaa moab moam moba mobb mobo moby moma momo momy mooa moob moxa moxo moxy moya moyo mybb myma mymy myo- myob myx- myxa myxo myxy oama obay obba obbo obby obox oboy omam omao ombo omma omo- omoa omoo omox omya ooaa ooba ooby ooma oooo oxa- oxo- oxox oxxo oxy- oyam xbox xmax xoom xoxo xoyo xxxo xxxx xxxy yaba yabo yama yamb yamm yamo yaxa yaya yayo ymax yoax yoba yobo yoma yomo yoyo yyyy