a-ii aaaa aaab aaai aaam aaba aabb aabi aabm aaib aaii aama aamb aami aamo aaoo abaa abab abai abam abb- abba abbb abbi abbo abia abib abim abma abmb aboa abob aboo aiai aiba aibo aiia aiib aimi aimm aimo aioi amaa amai amam amb- amba ambi ambo amia amib amii amm- amma ammi ammo amob amoi amoo aoba aoma ba-i baaa baam baba babb babi babm babo baia baib baio bama bamb bami bamm bbbb biao biba bibb bibi bibo bima bimo bio- bioi bmaa bmmi boab boai boba bobb bobi bobo boi- boii boim boma bomb bomi boob boom iaaa iaai iaba iabm iaia iaim iama iamb iami ibbm ibia ibim ibma iiii iiio iioi iioo imai imam imao imba imbi imma immi immo ioba iobi ioii ioio ioma iomo iooi iooo ma-i maaa maai maam maba mabi mabo maia maib maii maim maio mama mami mamo maoi mbam mbba mbia mbim mbio miaa miab miai miam miao miii miio mim- mima mimi mimo mio- mmaa mmab mmai mmii mmmm moaa moab moai moam moba mobb mobi mobo moii moio moma momi momo mooa moob oama obai obba obbo obia oboi oiba oiii oimb omai omam omao ombo omia omim omio omma omo- omoa omoi omoo ooaa ooba oobi ooia ooma oooo