a-ii aaaa aaab aaai aaal aaba aabb aabi aabl aabt aaib aaii aala aali aall aalo aaoo aata aatt abaa abab abai abal abat abb- abba abbb abbi abbo abbt abia abib abil abit abla ablo aboa abob abol aboo abot abta aiai aiba aibl aibo aiia aiib aila aili aioi aita aiti aitt alaa alai alal alao alat alb- alba albi albo ali- alia alib alii alil alio alit all- alla alli alll allo aloa aloi alol aloo alot alta alti alto aoba aola at-l at-t ataa atab atai atal atat atia atil atit atla atli atlo atob atoi atol atot atta atti atto ba-i baaa baal baat baba babb babi babo baia baib bail baio bait bala bali ball balo balt baol bata bati bato batt bbbb bblb bial biao biat biba bibb bibi bibl bibo bila bili bill bilo bilt bio- bioi biol biot bita bito bitt blaa blab blat blbt blio blit blob bloo blot boab boai boal boat boba bobb bobi bobo boi- boii boil boit bola boli boll bolo bolt boob bool boot bota botb boti boto bott btaa btla btob bttb iaaa iaai iaal iaat iaba iaia iala iall iata iati ibat ibia ibot ibtb ibtl iiii iiio iiit iila iioi iioo iita iitt ilal ilia ilio ilit ill- illa illi illo illt iloo ilot ioba iobi ioii ioio ioit iola iolo iooi iooo iota ioto itaa itai ital itat itia itil itll itoi itol itoo itta itto laaa laal laat laba labi labo laia lail lait lala lali lall lalo lata lati lato latt lbia liao liat liba libo liia liii lila lilb lili lill lilo lilt lio- lita litb liti litl lito litt llao llat llll lloa lloo loat lob- loba lobb lobi lobo loit lola loli loll lolo loob lool loot lota loti lotl loto lott ltbl ltib oall obai obal obba obbo obia obit obla oboi obol obot oiba oiii oila oita oiti olat olba olbo olia olib olio olit olla olli ollo olot olta ooaa ooba oobi ooia oola oolo oooo ootb otit oto- otoo otta otti otto taa- taal taat taba tabb tabi tabl tabo taia tail taio tait tala tali tall talo taoa tata tatb tati tato tatt tbil tbit tbta tiaa tiab tial tiao tiba tibi tiit tila till tilo tilt tita titi tito titt tlli toab toal toat toba tobi tobo tobt toil toit tol- tola toli toll tolo tolt tooa tool toot tota toti toto tott ttab ttbb tttt