a-be aaaa aaab aaad aaae aaba aabb aabd aada aade aadu aaea aage abaa abab abad abae abag abau abb- abba abbb abbe abda abdu abed abee abgd abua abud abue abug adaa adab adad adae adag adba adda addd adde addu adea adeb adee adua adub adue aede aega agad agag agau agba agda agde agea aged agee agga agge aggu agua ague auaa aube aude auga auge auug baaa baad baba babb babe babu bada badb badd bade badu baed baga bage bagg bau- baud baug bbad bbau bbbb bbdd bbeb bbga bead beag beau beba bebb bebe beda bede bedu beeb beed beeg bega begg begu buad buba bubb bube bubu buda budb budd bude budg budu buea bueu buga buge bugg daab daad daae daag daau daba dabb dabu dada dade dadu daeb daeu daga dage dagg dagu daub daud daue dbag dddd ddub dead deae deau deba debe debu deda dedd dede dedu deeb deed deeg dega dege degu deua deue dgeg dgge duaa duab duad dub- duba dubb dube dubu duda dudd dude dudu duga dugu eaba eada eadb eadd eaga eage ebba ebed edad edag edda edde ede- edea edge eede eedu eeea eeee eega egaa egad egae egba egbe egbu egea egee eggb egge euba eude euge gaba gabb gabe gabu gada gadd gade gaea gaed gaga gage gagg gagu gaua gaub gaud gaue gbag gbde gddb geab gead geba gebe geda gedd gede gedu geed gege gegg geue gggg guaa guag guba gubb gubu guda gude gudu guga gugb guge gugg gugu uaua ubba ubbe ubud udaa udad udau udea udgb udge ueba ueda ugab uguu uuuu