a-be a-ya aaaa aaab aaae aaba aabb aaby aaea aage abaa abab abae abag abay abb- abba abbb abbe abby abee abey abye abyy aeby aega agag agay agba agea agee agey agga agge aggy agya agye ayay ayya baaa baba babb babe baby baga bage bagg bagy baya baye bayg bbay bbbb bbeb bbga beag beay beba bebb bebe beby beeb beeg beey bega begg beya beye beyg bgye byge bygg eaba eaga eage ebay ebba ebby ebya eeby eeea eeee eega egaa egae egba egbe egea egee eggb egge eggy eyeb eyey gaba gabb gabe gaby gaea gaga gage gagg gaya gaye gbag geab geay geba gebe geby gege gegg gggg gybe gyge yaba yaga yage yaya yegg yeye yyyy