a-do aaaa aaad aaar aaav aada aadu aaoo aara aard aaro aaru aava 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 arva arvo auaa audo aur- aura aurd auro avao avar avda avor avou avra avro avur avva avvo daad daar daau dada dado dadu daou dara dard daro darr daru daud daur dava 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 druv duaa duad duar duda dudd dudo dudu duo- dura duro duru duur duva dvar dvda dvdr dvoa dvor dvra oaau oara odda oddd odoo odor odou odra odur odva ooaa ooda oooo oora oord orad orao orar orav orda ordo ordu oro- oror orra orro orvr ouad our- oura ouro ouu- ovar ovda ovo- ovod ovoo ovra raad rada radd rado radr radu rara raro raua raud rava road roar roda rodd rodo rood roor rora roro roru roua roud rova rovo rrad rrrr ruad ruda rudd rudo rura rurd ruro ruru ruud ruvu uaru uaua udaa udad udar udau udoo udra uor- uovo urad urao urau urda urdu uro- uroa uroo urra urur urva uuuu uv-a uvaa uvda uvrd uvvu vaad vaar vada vado vadu vara vard varr varu vaud vava voad voar voda vodo voor vor- vora vord voro voru voud vour vrav vuda vudu vvvv