a-do aaaa aaad aaar aada aadu aaoo aara aard aaro aaru adaa adad adao adar adda addd addo addr addu adod adoo ador adra adro adua adur aora arad arar arau arda ardo ardu aroa arod aroo aror arr- arra arro arrr arru arua arud auaa audo aur- aura aurd auro daad daar daau dada dado dadu daou dara dard daro darr daru daud daur dddd doar dod- doda dodd dodo dood door dora dord doro dorr doru doud dour draa drad drar drau drda drod drou drra drua druu duaa duad duar duda dudd dudo dudu duo- dura duro duru duur oaau oara odda oddd odoo odor odou odra odur ooaa ooda oooo oora oord orad orao orar orda ordo ordu oro- oror orra orro ouad our- oura ouro ouu- raad rada radd rado radr radu rara raro raua raud road roar roda rodd rodo rood roor rora roro roru roua roud rrad rrrr ruad ruda rudd rudo rura rurd ruro ruru ruud uaru uaua udaa udad udar udau udoo udra uor- urad urao urau urda urdu uro- uroa uroo urra urur uuuu