a-ha aaaa aaab aaah aaar aaba aabb aabh aaha aara aaru abaa abab abar abau abb- abba abbb abbr abha abhr abra abua ahab ahah ahar ahau ahha ahra ahrr ahua arab arah arar arau arba arbh arh- arr- arra arrh arrr arru arua arub auaa aur- aura baaa baah baar baba babb babr babu baha bahr bahu bar- bara barb barh barr baru bau- baur bbau bbbb bhar bhra bhur bhuu brab brah brau brrr bruh buar buba bubb bubu buha buhr bur- bura burb burh burr buru haab haar haba habu haha hara harh harr haru hau- hbar hhaa hhhh huah huba hubb huhu hura hurr huru huub raab raba rabb rabu raha rahr rahu rara rarb raua raub rbbb rbbr rhau rrah rrrr ruah ruba rubb rubu ruhh ruhr rura ruru uaru uaua ubar ubba ubra uhuh urau urba urra urrh urur uuuu