a-ha aaaa aaah aaar aaav aaha aaoo aara aaro aava ahah ahar ahha ahoa ahor ahra ahrr ahva aoah aora arah arar arh- aroa aroo aror arr- arra arrh arro arrr arva arvo avao avar avor avra avro avva avvo haar haha haho haor hara harh haro harr harv hava hhaa hhhh hoar hoha hoho hoor hora horo horr hova hvar oara ohho ohoh ohra ooaa ooha ooho oooh oooo oora orah orao orar orav oro- oror orra orro orvr ovar ovo- ovoo ovra raha rahr raoh rara raro rava rhoa rhoh roar roha rohr roor rora roro rova rovo rrah rrrr rvvh vaar vaho vara varr vava vhhh voar voho voor vor- vora voro vrav vvvv