a-ii a-iv aaaa aaab aaai aaav aaba aabb aabi aabt aaib aaii aaoo aata aatt aava abaa abab abai abat abau abb- abba abbb abbi abbo abbt abia abib abit abiu aboa abob aboo abot abou abov abta abtu abua abut abva aiai aiba aibo aiia aiib aioi aita aiti aitt aitu aiui aiva aoba aout at-t ataa atab atai atat atia atit atiu atob atoi atot atta atti atto attu atua atub atvi auaa aut- auto avab avao avat avia avio avit aviv avot avou avui avva avvo ba-i baaa baat baba babb babi babo babu baia baib baio bait bata bati bato batt batu bau- bava bavi bavu bbau bbbb biao biat biba bibb bibi bibo bio- bioi biot biou bita bito bitt bitu bivi boab boai boat boba bobb bobi bobo bobu boi- boii boit boiu boob boot bota botb boti boto bott boua bout bova bovi bovo btaa btob bttb btvi buat buba bubb bubi bubo bubu buit buiu but- buta buti buto butt iaaa iaai iaat iaba iaia iata iati iava ibat ibia ibot ibtb iiii iiio iiit iioi iioo iita iitt ioba iobi ioii ioio ioit iooi iooo iota ioto itaa itai itat itia itoi itoo itou itta itto iuiu ivai ivao ivbv oaau obai obba obbo obia obit oboi obot obvi oiav oiba oiii oita oiti ooaa ooba oobi ooia oooo ootb otit oto- otoo otov otta otti otto ottu ouat ouii ouit out- outa outb outi outo ouu- ovi- ovo- ovoo ovot taa- taat taba tabb tabi tabo tabu taia taio tait taoa taou tata tatb tati tato tatt tatu tatv taua taub taut tava tavi tavo tbit tbta tbvi tiaa tiab tiao tiba tibi tibu tiit tiiu tiou tita titi tito titt titu tiva tivi tivo toab toat toau toba tobi tobo tobt tobu toit tooa toot tota toti toto tott toui tout touv tova tovo ttab ttbb tttt tuao tuat tuba tubb tubo tubu tuit tuiu tuta tuti tuto tutt tutu tuuo tuva tvtv uata uatu uatv uaua ubba ubbi ubbo ubii ubit uovo utai utau utia utti utto uttu uuta uuuu uv-a uv-b uvaa uvat uvvu vaat vaia vaio vait vata vati vato vatt vatu vaut vava viau viii vita viti vito vitt vitu viva vivi vivo voat voia voio voit voot vota voto vout vt-i vuit vuti vutv vvob vvvv