a-ii aaaa aaab aaai aaba aabb aabi aabt aaib aaii aaoo aata aatt abaa abab abai abat abau abb- abba abbb abbi abbo abbt abia abib abit abiu aboa abob aboo abot abou abta abtu abua abut aiai aiba aibo aiia aiib aioi aita aiti aitt aitu aiui aoba aout aqai aqu- aqua aquo at-t ataa atab atai ataq atat atia atiq atit atiu atob atoi atot atta atti atto attu atua atub auaa aut- auto ba-i baaa baat baba babb babi babo babu baia baib baio bait baqa baqt bata bati bato batt batu bau- bbau bbbb bbbq biao biat biba bibb bibi bibo bio- bioi biot biou biqi bita bito bitt bitu boab boai boat boba bobb bobi bobo bobu boi- boii boit boiu boob boot bota botb boti boto bott boua bout btaa btob bttb buat buba bubb bubi bubo bubq bubu buit buiu buqa but- buta buti buto butt iaaa iaai iaat iaba iaia iata iati 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 oaau obai obba obbo obia obit oboi oboq obot oiba oiii oita oiti ooaa ooba oobi ooia oooo ootb oqui otit oto- otoo otta otti otto ottu ouat ouii ouit out- outa outb outi outo outq ouu- qabo qbit qiao qibo qobu qoob qqqq quaa quab quai quat quba qubi qubo quia quib quit quob quoi quot qutb quu- taa- taat taba tabb tabi tabo tabu taia taio tait taoa taou taqa taqi taqu tata tatb tati tato tatt tatu taua taub taut tbit tbta tiaa tiab tiao tiba tibi tibu tiit tiiu tiou tita titi tito titt titu toab toat toau toba tobi tobo tobt tobu toit tooa toot tota toti toto tott toui tout ttab ttbb tttt tuao tuat tuba tubb tubo tubu tuit tuiu tuta tuti tuto tutt tutu tuuo uata uatu uaua ubba ubbi ubbo ubii ubit uqao uqat utai utau utia utti utto uttu utuq uuta uuuu