a-be a-ii aaaa aaab aaae aaai aaba aabb aabi aaea aage aaib aaii abaa abab abae abag abai abb- abba abbb abbe abbi abee abia abib abie abig aebi aega agag agai agba agea agee agei agga agge aggi agia agib agie agig agii aiai aiba aiea aiee aiga aiia aiib ba-i baaa baba babb babe babi baga bage bagg bagi baia baib baie baig bbbb bbeb bbga beag beba bebb bebe bebi beeb beeg bega begg begi beia bgia biba bibb bibe bibi bieb biga bigb bige bigg eaba eaga eage ebba eeea eeee eega egaa egae egba egbe egea egee eggb egge eggi eiei eige eigg gaba gabb gabe gabi gaea gaga gage gagg gagi gaia gaie gaig gbag geab geai geba gebe gebi gege gegg geia geie geig gggg giaa giai giba gibb gibe giga gige gigg gigi i-be iaaa iaai iaba iaea iaia ibea ibeg ibga ibge ibia ibie ieie igba igea igga igia iiie iiii