a-ii aaaa aaab aaac aaai aaal aaba aabb aabc aabi aabl aabt aaca aacb aacc aaci aacl aaco aact aaib aaic aaii aala aalc aali aall aalo aaoo aata aatc aatt abaa abab abac abai abal abat abb- abba abbb abbi abbo abbt abca abcb abcc abci abcl abct abia abib abic abil abit abla ablo aboa abob abol aboo abot abta ac-t acaa acab acac acai acat acba acbl acca accc acci acco acct aci- acia acic acla aclc acli acoa acol acot acta actc acti actl acto actt aiai aiba aibl aibo aica aicc aiia aiib aiic aila aili aioc aioi aita aiti aitt alaa alac alai alal alao alat alb- alba albc albi albo alca alcc alco ali- alia alib alii alil alio alit all- alla alli alll allo aloa aloc aloi alol aloo alot alta alti alto aoba aoca aola aotc at-l at-t ataa atab atac atai atal atat atca atcc atcl atco atia atic atil atit atla atli atlo atob atoc atoi atol atot atta atti atto ba-i baaa baal baat baba babb babi babo bac- baca bacc baci baco bact baia baib baic bail baio bait bala balc bali ball balo balt baol bata batc bati bato batt bbbb bbci bblb bcaa bcat bcbc bcca bccc bcci bccl bcia bcit bctc bial biao biat biba bibb bibi bibl bibo bica bicc bici bico bila bili bill bilo bilt bio- bioc bioi biol biot bita bitc bito bitt blaa blab blac blat blbt blic blio blit blob bloc bloo blot boab boac boai boal boat boba bobb bobi bobo boca boco boi- boii boil boit bola boli boll bolo bolt boob booc bool boot bota botb boti boto bott btaa btcc btcl btla btob bttb c-bo caaa caab caac caal caat caba cabi cabo cac- caca cacc caci caco caia caib caic cail caio cait cala calc cali call calo calt caoi caol cat- cata catb catc cati cato catt cbac cbal cbat cbbc cbca cbcc cbcl cbct cbia cbit cblb cblc cbol cbot cbta cbtc cbtl ccaa ccab ccac ccai ccat ccba ccbc ccca cccb cccc ccci cccl ccic ccii ccil ccla cclc ccli ccob ccoc cctb cctc cctl cctt ciaa cial ciao ciat ciba cibc cibi cibo cica cicc cici cico cict ciia ciii ciit cila cili cill cilo cilt ciob cita citb citi citl cito citt clab clai clat clib clic clii clio clit clob cloo clot cltb cltc coai coal coat coba cobb cobi cobo coca coco coct coia coil coit col- cola colb coli coll colo colt coob cool coot cota cotb cotc coti coto cott ctab ctal ctba ctbi ctca ctia ctic ctol ctot ctta iaaa iaac iaai iaal iaat iaba iaca iacc iact iaia iala iall iata iatc iati ibac ibat ibca ibia ibot ibtb ibtc ibtl icaa icab icac icai ical icao icat icbc icca iccb iccc icci iccl icco icct icll icoc icta iiac iica iiii iiio iiit iila iioi iioo iita iitt ilac ilal ilbc ilca ilia ilic ilio ilit ill- illa illi illo illt iloc iloo ilot ioba iobi ioci ioii ioio ioit iola iolo iooi iooo iota ioto itaa itac itai ital itat itia itic itil itll itoi itol itoo itta itto laaa laac laal laat laba labi labo laca lacc laci lacl laco lact laia laic lail lait lala lali lall lalo lata latc lati lato latt lbcc lbia lcac lcat lcbc lcca lccc lcia lctl lcto liac liao liat liba libc libo lica lico lict liia liii lila lilb lili lill lilo lilt lio- lita litb liti litl lito litt llao llat llcc lllc llll lloa lloc lloo loac loat lob- loba lobb lobi lobo loca locc loci loco loic loit lola loli loll lolo loob looc lool loot lota loti lotl loto lott ltac ltbl ltcc ltci ltib lttc oaic oall obai obal obba obbo obia obit obla oboi obol obot ocab ocac ocal ocat ocbc occa occc occi occt oclc oct- octa octi octo oiba oici oiii oila oita oitc oiti olac olat olba olbo olca olcc olia olib olic olio olit olla olli ollo olot olta ooaa ooba oobi ooia oola oolo oooo ootb otac otcl otic otit oto- otoo otta otti otto taa- taal taat taba tabb tabc tabi tabl tabo taca tacc taci tacl taco tact taia tail taio tait tala talc tali tall talo taoa tata tatb tati tato tatt tbca tbcb tbcc tbil tbit tbta tcca tccc tctc tiaa tiab tial tiao tiba tibi tica ticc tico tiit tila till tilo tilt tita titc titi tito titt tlac tlco tlli toab toal toat toba tobi tobo tobt toca toci toco toil toit tol- tola toli toll tolo tolt tooa tool toot tota totc toti toto tott ttab ttbb tttt