a-ii a-iv aaaa aaab aaai aaal aaav aaba aabb aabi aabl aabt aaib aaii aala aali aall aata aatt aava abaa abab abai abal abat abb- abba abbb abbi abbt abia abib abil abit abla ablv abta abva aiai aiba aibl aiia aiib aila aili aita aiti aitt aiva alaa alai alal alat alb- alba albi ali- alia alib alii alil alit all- alla alli alll alta alti alva alvi at-l at-t ataa atab atai atal atat atia atil atit atla atli atta atti atvi avab aval avat avia avil avit aviv avlb avva ba-i baaa baal baat baba babb babi baia baib bail bait bala bali ball balt bata bati batt bava bavi bbbb bblb bial biat biba bibb bibi bibl bila bili bill bilt bita bitt bivi bivl blaa blab blat blbt blit blvt btaa btla bttb btvi iaaa iaai iaal iaat iaba iaia iala iall iata iati iava ibat ibia ibtb ibtl iiii iiit iila iita iitt ilal ilia ilit ill- illa illi illt ilva itaa itai ital itat itia itil itll itta ivai ivbv laaa laal laat laba labi laia lail lait lala lali lall lata lati latt latv lava lavi lbia liat liba liia liii liiv lila lilb lili lill lilt lita litb liti litl litt liva livi llat llll ltbl ltib lttv lvii lviv taa- taal taat taba tabb tabi tabl taia tail tait tala tali tall tata tatb tati tatt tatv tava tavi tbil tbit tbta tbvi tiaa tiab tial tiba tibi tiit tila till tilt tita titi titt tiva tivi tlli ttab ttbb tttt tvil tvtv vaal vaat vaia vail vait vala vali vall valt vata vati vatt vava vial viii vila vili vill vilt vita viti vitt viva vivi vlab vlai vlat vlba vlli vlvt vt-i vtvl vvvv