aaaa aaab aaal aaba aabb aabl aala aall aalo aalu aaoo abaa abab abal abau abb- abba abbb abbo abla ablo aboa abob abol aboo abou abua abul alaa alal alao alau alb- alba albo albu all- alla alll allo allu aloa alol aloo alou alua aoba aola aoul auaa aul- aula aull aulo aulu auol baaa baal baba babb babo babu bala ball balo balu baol bau- baul bbau bbbb bblb blaa blab blau blob bloo blou blub boab boal boba bobb bobo bobu bola boll bolo bolu boob bool boua boul bual buba bubb bubo bubu bula bulb bull bulu buol laaa laal laba labo labu lala lall lalo lalu laou laub laul llao llll lloa lloo lob- loba lobb lobo lola loll lolo loob lool loul louu luau luba lula lull lulu luua oaau oall obal obba obbo obla oblu obol olba olbo olla ollo ooaa ooba oola oolo oooo oula oulu ouu- uaua ubal ubba ubbo ubla ublo ulaa ulla ullo ulo- ulua ulul uulu uuuu