a-do aaaa aaab aaad aaba aabb aabd aada aadu aaoo abaa abab abad abag abau abb- abba abbb abbo abda abdo abdu abgd aboa abob abod aboo abou abua abud abug adaa adab adad adag adao adba adda addd addo addu adob adod adog adoo adua adub ag-o agad agag agao agau agba agbo agda agga aggu agob agod agog agoo agou agua aoba auaa audo auga auug baaa baad baba babb babo babu bada badb badd bado badu baga bagg bago bau- baud baug bbad bbau bbbb bbdd bbdo bbga bdog boab boad boag boba bobb bobo bobu boda bodb bodo bodu boga bogd bogg bogo boob bood boog boua boud buad buba bubb bubo bubu buda budb budd budg budo budu buga bugg bugo d-bo daab daad daag daau daba dabb dabo dabu dada dado dadu daga dagg dago dagu daou daub daud dbag dddd ddub doab doba dobb dobu dod- doda dodd dodg dodo dog- doga dogg dogo dogu doob dood doub doud doug duaa duab duad dub- duba dubb dubu duda dudd dudo dudu duga dugu duo- gaba gabb gabo gabu gada gadd gado gaga gagg gago gagu gaua gaub gaud gbag gbbo gddb gggg goad goba gobo goda godo goga gogo good goog gou- goud goug guaa guag guao guba gubb gubu guda gudo gudu guga gugb gugg gugu oaau obad obba obbo odbo odda oddd odoo odou ogb ogba ogoa ogod ogog ogou ooaa ooba ooda oooo ouad ouu- uaua ubba ubbo ubod ubud udaa udad udau udgb udoo ugab ugao uggo ugod uguu uuuu