a-do a-ii aaaa aaab aaad aaai aaba aabb aabd aabi aabt aada aadi aadt aaib aaii aaoo aata aatt abaa abab abad abai abat abb- abba abbb abbi abbo abbt abda abdi abdo abia abib abid abit aboa abob abod aboo abot abta adaa adab adad adai adao adat adba adbi adda addd addi addo adia adib adio adit adob adod adoo adot adta aiai aiba aibo aida aidb aidi aidt aiia aiib aiid aioi aita aiti aitt aoba aotd at-t ataa atab atad atai atat atdi atdt atia atid atit atob atod atoi atot atta atti atto ba-i baaa baad baat baba babb babi babo bada badb badd badi bado baia baib baid baio bait bata bati bato batt bbad bbbb bbdd bbdo bdii biad biao biat biba bibb bibi bibo bida bidi bido bio- bioi biot bita bitd bito bitt boab boad boai boat boba bobb bobi bobo boda bodb bodi bodo boi- boid boii boit boob bood boot bota botb botd boti boto bott btaa btdt btob bttb d-bo daab daad daba dabb dabo dabt dada dadi dado daia daid daio dait data dati dato datt dbit dbtt dddd ddot dia- diab diad diao diat diba dibb dibo dida didi dido diii diot dita diti dito ditt doab doat doba dobb dobi dod- doda dodd dodi dodo doid doit doob dood doot dota dotd doti doto dott dtaa dtot iaaa iaai iaat iaba iadb iadt iaia iata iati ibad ibat ibdo ibia ibid ibot ibtb idad idat idda iddo idia idid idio idta iida iiii iiio iiit iioi iioo iita iitt ioba iobi iod- ioda iodd iodo ioii ioio ioit iooi iooo iota ioto itaa itai itat itdo itia itoi itoo itta itto obad obai obba obbo obdt obia obid obit oboi obot obtd odai odbo odda oddd oddi odia odio odoo odot oiba oido oiii oita oiti ooaa ooba oobi ooda oodi ooia ooid oooo ootb otbd otit oto- otoo otta otti otto taa- taat taba tabb tabi tabo tada tado taia taio tait taoa tata tatb tati tato tatt tbit tbta tddb tiaa tiab tiao tiba tibi tidd tiit tita titi tito titt toab toad toat toba tobi tobo tobt toda todd todi todo todt toid toit tooa tood toot tota totd toti toto tott ttab ttbb tttt