a-be a-ha aaaa aaab aaae aaah aaar aaba aabb aabh aaea aaha aara aare aaru abaa abab abae abar abau abb- abba abbb abbe abbr abee aber abha abhr abra abua abue aeer aer- aera ahab ahah ahar ahau ahha ahra ahre ahrr ahua arab arae arah arar arau arba arbe arbh area aree areh areu arh- arr- arra arre arrh arrr arru arua arub arue auaa aube auer aur- aura aure baaa baah baar baba babb babe babr babu baer baha bahr bahu bar- bara barb bare barh barr baru bau- baur bbau bbbb bbeb beah bear beau beba bebb bebe beeb beer behr bera bere berr beru beur bhar bher bhra bhur bhuu brab brae brah brau brea breb bree brer brrr brue bruh buar buba bubb bube bubu buea buer bueu buha buhe buhr bur- bura burb bure burh burr buru eaba eabh eara earb eare earh ebba ebbr eber ebru ebur eeea eeee eera ehaa ehea eheh eher eheu ehre erau erba erbb erbe ereb erer erhu erra erre erua erub eruh erur euba euer eur- eura eure haab haar haba habe habu haha hara hare harh harr haru hau- haue hbar heah hear hebb hebe hebr heeb heer hehe hera herb here herr heru heue heur hhaa hhhh hree huah huba hubb hube huea huer huhu hura hure hurr huru huub raab raba rabb rabe rabu raer raha rahe rahr rahu rara rarb rare raua raub raue rbbb rbbr rea- reae rear reau reba rebb rebe rebu reeb reha rehb rehe rera rere reru reue reuu rhae rhau rhea rheb rhee rhue rrah rrrr ruah ruba rubb rube rubu ruer ruhe ruhh ruhr rura rure ruru uaru uaua ubar ubba ubbe uber ubra ueba uher uhuh urau urba urbe ure- urea ureh urra urre urrh urur uuuu