a-ii aaaa aaai aaar aaii aaoo aara aari aaro aart aata aatt aiai aiia aiir aioi aira airi airo airt aita aiti aitr aitt aora aort arai arar arat aria arii ario arit aroa aroi aroo aror arr- arra arri arro arrr arrt arta arti arto artr at-t ataa atai atar atat atia atit atoi ator atot atra atri atro atta atti atto attr iaaa iaai iaat iaia iara iart iata iati iiii iiio iiit iioi iioo iira iita iitr iitt ioii ioio ioit iooi iooo iora iori iota ioto irai irao irar iri- iria irio irra irri irta irti itaa itai itar itat itia itoi itoo itor itra itri itta itto oara oiii oira oirt oita oiti ooaa ooia oooo oora oort orai orao orar orat ori- oria orio orit oro- oror orot orra orri orro orta orto otar otit oto- otoo otor otra otro otta otti otto raat raia raii rair rait rara rari raro rata rati rato ratt riaa riai riat riia riot riri rita riti rito ritt roar roat roia roio roir roit rooi roor root rora rori roro rort rota roti roto rotr rott rrat rrrr rtai taa- taar taat taia taio tair tait taoa taor tara tari taro tarr tart tata tati tato tatr tatt tiaa tiao tiar tiit tira tiri tiro tirr tita titi tito titt toat toit tooa toor toot tora tori toro torr tort tota toti toto totr tott traa trai trao trat tri- tria trio trit troa troi troo trot trra trtr tttt