a-fu aaaa aaab aaaf aaal aaba aabb aabl aabt aafa aafb aaff aafl aala aall aalo aalu aaoo aata aatf aatt abaa abab abaf abal abat abau abb- abba abbb abbo abbt abff abla ablo aboa abob abof abol aboo abot abou abta abtu abua abuf abul abut afaa afao afat affa affo afft afla afoa afol afoo afta afua alaa alal alao alat alau alb- alba albo albu alfa all- alla alll allo allu aloa alof alol aloo alot alou alta alto alua aluf alut aoba aola aotf aouf aoul aout at-l at-t ataa atab atal atat atfb atla atlo atob atof atol atot atta atto attu atua atub atul auaa aul- aula aulf aull aulo ault aulu auol aut- auto baaa baaf baal baat baba babb babo babu baff bafo baft bala balf ball balo balt balu baol bata batf bato batt batu bau- bauf baul bbau bbbb bblb bffl bfta bftt blaa blab blat blau blbt blob bloo blot blou blub bluf blut boab boal boat boba bobb bobo bobu bofa boff bofu bola boll bolo bolt bolu boob boof bool boot bota botb boto bott boua bouf boul bout btaa btaf btla btob bttb bual buat buba bubb bubo bubu buff bufo bula bulb bull bult bulu buol but- buta buto butt faaa faba fabo fabu fafa faff fafo fala fall falo falt falu fata fatf fato fatt faul faut fbla ffff fftf flab flao flat flob floo flot flou flub fluf fluo foaf foal foba fobt fofo fola foll folo folt foof fool foot fota foto fott foua foul fout ft-l ftlb ftub fuat fubb fubu fuff fufu fula full fulu futa futo futu laaa laal laat laba labo labu lafb laff laft lala lall lalo lalu laou lata lato latt latu laub lauf laul laut lfat llao llat llll lloa lloo loaf loat lob- loba lobb lobo lofa loff loft lola loll lolo loob loof lool loot lota lotl loto lott loul lout louu ltbf ltbl luau luba luff luft lufu lula lull lulu luta luua oaau oafo oall obal obba obbo obla oblu obol obot off- offa offo offu ofla ofta olaf olat olba olbo olfa olla ollo olof olot olta oltu ooaa ooba ooff oola oolo oooo ootb oto- otof otoo otta otto ottu ouat ouff oula oulu out- outa outb outo ouu- taa- taaf taal taat taba tabb tabl tabo tabu tafa taff tafo taft tala tall talo talu taoa taou tata tatb tato tatt tatu taua taub taul taut tbaf tbta tfal tfot toab toal toat toau toba tobo tobt tobu tofa toff tofo toft tofu tol- tola toll tolo tolt tolu tooa toof tool toot tota toto tott toul tout ttab ttbb ttfa ttff tttt ttul tual tuao tuat tuba tubb tubo tubu tufa tuff tufo tuft tufu tula tull tulo tulu tuta tutl tuto tutt tutu tuuo uafa uata uatu uaua ubal ubba ubbo ubla ublo ubtf uffa ulaa ulft ulla ullo ulo- ulta ulto ultt ulua ulul uofa uofl uofo utal utau utfo utto uttu uulu uuta uutf uuuu