a-ha aaaa aaah aaar aaav aaha aaoo aara aaro aart aata aatt aava ahah ahar ahat ahha ahoa ahor ahot ahra ahrr ahta ahto ahva aoah aora aort arah arar arat arh- aroa aroo aror arr- arra arrh arro arrr arrt arta arth arto artr artv arva arvo at-t ataa atar atat atha atho ator atot atra atro atta atto attr avao avar avat avor avot avra avro avva avvo haar haat haha haho haht haor hara harh haro harr hart harv hata hath hato hatt hava hhaa hhat hhhh hoar hoat hoha hoho hoor hoot hora horo horr hort hota hoth hoto hotr hott hova hrta hrtv htoh htra httr hvar hvat hvtr oara oath ohho ohoh ohra ohta ohto ooaa ooha ooho oooh oooo oora oort orah orao orar orat orav oro- oror orot orra orro orta orth orto orvr otar otha otho othr oto- otoh otoo otor otov otra otro otta otto ovar ovo- ovoo ovot ovra raat raha rahr raht raoh rara raro rata rath rato ratt rava rhoa rhoh roar roat roha rohr roor root rora roro rort rota roth roto rotr rott rova rovo rrah rrat rrrr rtva rvvh taa- taar taat taha taho tahr taoa taor tara taro tarr tart tata tath tato tatr tatt tatv tava tavo thaa thao thar that thoo thor thot thra thro thtr toat toho tooa tooh toor toot tora toro torr tort torv tota toth toto totr tott tova tovo traa trao trat trav troa troo trot trra trtr tttt tvro tvrr tvtv vaar vaat vaho vara varr vart vata vath vato vatt vava vhhh voar voat voho voor voot vor- vora voro vort vota voth voto vrav vrot vrto vvvv