a-be a-ii aaaa aaab aaae aaai aaam aaba aabb aabi aabm aaea aaem aaib aaii aama aamb aame aami abaa abab abae abai abam abax abb- abba abbb abbe abbi abee abia abib abie abim abma abmb aebi aiai aiba aiea aiee aiia aiib aime aimi aimm aixa aixi aixm amaa amae amai amam amax amb- amba ambe ambi ambx amee amei amex amia amib amie amii amix amm- amma amme ammi axi- axia axie axim ba-i ba-x baaa baam baba babb babe babi babm baia baib baie baix bama bamb bame bami bamm baxi bbbb bbeb beam beba bebb bebe bebi beeb beem beia beim bema beme biba bibb bibe bibi bieb bima bimx bixa bixi bmaa bmmi eaba eama eame ebam ebba ebix eeea eeee eiei eime eimi emae emam emax emba embe embi emex emia emii emim emix emma emme emmi exa- exai exam exim i-be iaaa iaai iaba iabm iaea iaia iaim iama iamb iame iami iamx ibbm ibea ibex ibia ibie ibim ibma ibmx ieie iema ieme iiie iiii imai imam imax imba imbe imbi imea imix imma imme immi ixia ixxi ma-i maaa maai maam maba mabe mabi maee maem maia maib maie maii maim mama mame mami maxi maxx mbam mbba mbia mbim meai mebe meem mema meme memx mexx miaa miab miai miam miee miem miii mim- mima mime mimi mixe mixi mixx mmaa mmab mmai mmea mmii mmix mmmm mmxi mmxx mxii mxim mxxi xbai xbee xema xeme xexe xibe xiii xima xixi xmax xmii xxii xxix xxxi xxxx