a-fu aaaa aaab aaaf aaal aaba aabb aabl aafa aafb aaff aafl aala aall aalo aalu aaoo abaa abab abaf abal abau abb- abba abbb abbo abff abla ablo aboa abob abof abol aboo abou abua abuf abul afaa afao affa affo afla afoa afol afoo afua alaa alal alao alau alb- alba albo albu alfa all- alla alll allo allu aloa alof alol aloo alou alua aluf aoba aola aouf aoul auaa aul- aula aulf aull aulo aulu auol baaa baaf baal baba babb babo babu baff bafo bala balf ball balo balu baol bau- bauf baul bbau bbbb bblb bffl blaa blab blau blob bloo blou blub bluf boab boal boba bobb bobo bobu bofa boff bofu bola boll bolo bolu boob boof bool boua bouf boul bual buba bubb bubo bubu buff bufo bula bulb bull bulu buol faaa faba fabo fabu fafa faff fafo fala fall falo falu faul fbla ffff flab flao flob floo flou flub fluf fluo foaf foal foba fofo fola foll folo foof fool foua foul fubb fubu fuff fufu fula full fulu laaa laal laba labo labu lafb laff lala lall lalo lalu laou laub lauf laul llao llll lloa lloo loaf lob- loba lobb lobo lofa loff lola loll lolo loob loof lool loul louu luau luba luff lufu lula lull lulu luua oaau oafo oall obal obba obbo obla oblu obol off- offa offo offu ofla olaf olba olbo olfa olla ollo olof ooaa ooba ooff oola oolo oooo ouff oula oulu ouu- uafa uaua ubal ubba ubbo ubla ublo uffa ulaa ulla ullo ulo- ulua ulul uofa uofl uofo uulu uuuu