aaaa aaae aaar aaav aaea aaev aaoe aaoo aara aare aaro aava aeer aer- aera aero aeva aora arae arar area aree areo arev aroa aroe aroo aror arr- arra arre arro arrr arva arve arvo avao avar avea aveo aver avor avra avre avro avva avvo eara eare earo eave eeea eeee eera eero eeva eora eore erer erev eroe eroo erra erre erro erve evae evar evea ever evoe evoo evra evre o-eo oaer oara oare oera oere ooaa ooer oooo oora oore orae orao orar orav ore- orea oreo orer oro- oroe oror orra orro orve orvr ovar ovee over ovo- ovoo ovra ovre raer rara rare raro rava rave rea- reae reao rear reev rera rere rero reva reve revo roar roea roer roev roor rora rore roro rova rove rovo rrrr rver vaar vara vare varr vava vear veer veor ver- vera vere vero veve vevo voar voer voor vor- vora vore voro vrav vreo vver vvvv