a-be a-ya aaaa aaab aaae aaba aabb aaby aaea aage abaa abab abae abag abau abay abb- abba abbb abbe abby abee abey abua abue abug abuy abye abyy aeby aega agag agau agay agba agea agee agey agga agge aggu aggy agua ague aguy agya agye auaa aube auby auga auge augy auug ayay ayub ayya baaa baba babb babe babu baby baga bage bagg bagy bau- baug baya baye bayg bayu bbau bbay bbbb bbeb bbga beag beau beay beba bebb bebe beby beeb beeg beey bega begg begu beya beye beyg bgye buba bubb bube bubu buea bueu buga buge bugg buyu byge bygg eaba eaga eage ebay ebba ebby ebya eeby eeea eeee eega egaa egae egba egbe egbu egea egee eggb egge eggy euba euge eyeb eyey gaba gabb gabe gabu gaby gaea gaga gage gagg gagu gaua gaub gaue gaya gaye gbag geab geay geba gebe geby gege gegg geue gggg guaa guag guay guba gubb gubu guby guey guga gugb guge gugg gugu guye guyu gyau gybe gyge gyuu uaua ubay ubba ubbe ueba ugab uguu uuuu uyea yaba yaga yage yaue yaya yayu ye-u yegg yeue yeye yuba yubu yuea yuga yugg yugu yuya yuye yuyu yyyy