a-do aaaa aaab aaad aaal aaba aabb aabd aabl aada aadu aala aald aall aalo aalu aaoo abaa abab abad abal abau abb- abba abbb abbo abda abdo abdu abla ablo aboa abob abod abol aboo abou abua abud abul adaa adab adad adal adao adba adda addd addl addo addu adob adod adoo adua adub alaa alad alal alao alau alb- alba albo albu ald- alda aldl aldo all- alla alll allo allu aloa alod alol aloo alou alua aoba aola aoul auaa audo aul- aula auld aull aulo aulu auol baaa baad baal baba babb babo babu bada badb badd bado badu bala bald ball balo balu baol bau- baud baul bbad bbau bbbb bbdd bbdo bblb blaa blab blad blau blob blod bloo blou blub blud boab boad boal boba bobb bobo bobu boda bodb bodo bodu bola bold boll bolo bolu boob bood bool boua boud boul buad bual buba bubb bubo bubu buda budb budd budl budo budu bula bulb buld bull bulu buol d-bo daab daad daal daau daba dabb dabo dabu dada dado dadu dala dall dalo dalu daou daub daud dddd ddub dlab dlbd doab doal doba dobb dobl dobu dod- doda dodd dodo dola dold doll dolo dolu doob dood dool doub doud doul duaa duab duad dual dub- duba dubb dubu duda dudd dudo dudu dula dull dulo dulu duo- duul laaa laad laal laba labo labu lada ladd lado ladu lala lald lall lalo lalu laou laub laud laul llao lldb llll lloa llod lloo llud load lob- loba lobb lobo loda lola lold loll lolo loob lood lool loud loul louu luau luba luda ludd ludo lula lull lulu luua oaau oall obad obal obba obbo obla oblu obol odal odbo odda oddd odla odoo odou olba olbo oldb olla ollo ooaa ooba ooda oola oold oolo oooo ouad oula ould oulu ouu- uald uaua ubal ubba ubbo ubla ublo ubod ubud udaa udad udal udau udoo ulaa ulad ulla ullo ulo- ulua ulul uulu uuuu