a-fu aaaa aaab aaaf aaal aaba aabb aabl aafa aafb aaff aafl aala aall aalu abaa abab abaf abag abal abau abb- abba abbb abff abgl abla abua abuf abug abul afaa affa afgf afla aflg afua agag agal agau agba agfa agga aggu agla aglu agua agul alaa alag alal alau alb- alba albu alfa alg- alga all- alla alll allu alua aluf alug auaa auga aul- aula aulf aull aulu auug baaa baaf baal baba babb babu baff baga bagg bala balf ball balu bau- bauf baug baul bbau bbbb bbga bblb bffl bfgf blaa blab blag blau blub bluf bual buba bubb bubu buff buga bugg bula bulb bulg bull bulu faaa faba fabu fafa faff fafg fagg fagu fala fall falu faul fbla ffff flab flag flub fluf fubb fubu fuff fufu fuga fugu fula full fulu gaal gaba gabb gabl gabu gafa gafb gaff gaga gagg gagu gala gall galu gaua gaub gaul gbag gffa ggfg gggg glaa glab glau glub glug guaa guag guba gubb gubu gufa guff guga gugb gugg gugu gula gulb gulf gull gulu laaa laag laal laba labu lafb laff lag- laga lagg lagu lala lall lalu laub lauf laul lbug lgbu lgfl llll luau luba luff lufu luga lugg lugu lula lull lulu luua uafa uaua ubal ubba ubla ufag uffa ugab ugal uguu ulaa ulla ulua ulul uulu uuuu