a-ii a-iv aaaa aaab aaai aaav aaba aabb aabi aabt aaib aaii aaoo aata aatt aava abaa abab abai abat abb- abba abbb abbi abbo abbt abia abib abit aboa abob aboo abot abov abta abva aiai aiba aibo aiia aiib aioi aita aiti aitt aiva aoba at-t ataa atab atai atat atia atit atob atoi atot atta atti atto atvi avab avao avat avia avio avit aviv avot avva avvo ba-i baaa baat baba babb babi babo baia baib baio bait bata bati bato batt bava bavi bbbb biao biat biba bibb bibi bibo bio- bioi biot bita bito bitt bivi boab boai boat boba bobb bobi bobo boi- boii boit boob boot bota botb boti boto bott bova bovi bovo btaa btob bttb btvi 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 itta itto ivai ivao ivbv 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 ovi- ovo- ovoo ovot taa- taat taba tabb tabi tabo taia taio tait taoa tata tatb tati tato tatt tatv tava tavi tavo tbit tbta tbvi tiaa tiab tiao tiba tibi tiit tita titi tito titt tiva tivi tivo toab toat toba tobi tobo tobt toit tooa toot tota toti toto tott tova tovo ttab ttbb tttt tvtv vaat vaia vaio vait vata vati vato vatt vava viii vita viti vito vitt viva vivi vivo voat voia voio voit voot vota voto vt-i vvob vvvv