a-be a-ii aaaa aaab aaac aaae aaai aaar aaba aabb aabc aabi aabt aaca aacb aacc aace aaci aaco aacr aact aaea aaec aaib aaic aaii aaoe aaoo aara aarc aare aari aaro aart aata aatc aatt abaa abab abac abae abai abar abat abb- abba abbb abbe abbi abbo abbr abbt abca abcb abcc abci abcr abct abec abee aber abet abia abib abic abie abir abit aboa abob aboo abor abot abra abrc abri abro abta ac-t acaa acab acac acae acai acar acat acba acca accc acce acci acco acct ace- acea acec acer acet aci- acia acic acie acir acoa acoe acor acot acr- acra acrc acre acri acro acrr acta actc acte acti acto actt aeac aebi aecb aeci aect aeer aeio aeit aer- aera aerc aeri aero aeta aetc aeto aetr aett aiai aiba aibo aica aicc aice aicr aiea aiee aiet aiia aiib aiic aiir aioc aioi aira aire airi airo airt aita aite aiti aitr aitt aoba aoca aoce aora aorb aort aotc arab arac arae arai arar arat arba arbe arbi arc- arca arce arci arco arct area arec aree arei areo aret aria arib arie arii ario arit aroa arob aroe aroi aroo aror arr- arra arrc arre arri arro arrr arrt arta artc arte arti arto artr at-t ataa atab atac atae atai atar atat atca atcc atco atcr atea atec atee atei ateo ater atia atic atie atit atob atoc atoe atoi ator atot atra atrc atre atri atro atta atte atti atto attr ba-i baaa baar baat baba babb babe babi babo babr bac- baca bacc bace baci baco bact baer baia baib baic baie baio bair bait bar- bara barb barc bare bari baro barr bart bata batc bate bati bato batt bbbb bbci bbeb bbet bbrc bcaa bcar bcat bcbc bcca bccc bcci bcec bcer bcet bcia bcie bcit bcor bcra bctc bear beat beba bebb bebe bebi bebo beca beci beeb beer beet beia beic beir beit beo- beor beot bera berc bere beri bero berr bert beta betc bete beti beto bett biao biar biat biba bibb bibe bibi bibo bica bicc bice bici bico bieb bier biet bio- bioc bioi biot bira birb bire biri biro birr birt bita bitc bite bito bitt boab boac boai boar boat boba bobb bobe bobi bobo boca boce boco boea boec boee boeo boer boet boi- boie boii boit boob booc booe boor boot bor- bora bore bori boro borr bort bota botb bote boti boto bott brab brac brae brai brao brat brca brcb brce brea breb brec bree brei breo brer bret bria bric brie brio brit broa brob broc broe broo bror brot brrr brtc btaa btcc btec btie btob btor btrc btrt bttb c-bo caaa caab caac caat caba cabe cabi cabo cac- caca cacc cace caci caco cacr caec caei caer caia caib caic caio cair cait caoi caor cara carb carc care cari caro carr cart cat- cata catb catc cate cati cato catt cbac cbar cbat cbbc cbca cbcc cbce cbcr cbct cbea cbec cbee cber cbet cbia cbir cbit cbot cbre cbrt cbta cbtc ccaa ccab ccac ccai ccar ccat ccba ccbc ccca cccb cccc ccci ccee ccic ccii ccir ccob ccoc ccra ccrc ccre ccri ccrt cctb cctc cctt ceac cear ceat ceba cec- ceca cece ceci ceco cect ceeb ceec ceor cer- cera cerc cere ceri cero cert cet- ceta cete ceti ceto ciaa ciao ciar ciat ciba cibc cibe cibi cibo cica cicc cici cico cicr cict ciee cier ciia ciii ciit ciob cior cira cirb circ cire ciri ciro cirr cirt cita citb cite citi cito citt coai coat coba cobb cobe cobi cobo coca coce coco coct coia coir coit coob coot cor- cora corb corc core cori coro corr cort cota cotb cotc cote coti coto cott crab crac crai crar crat crbc crca crcc crce crcr cre- crea creb crec cree crei creo cret cria crib cric crie crit crob croc croe croo cror crot crrt crtc ctab ctae ctba ctbi ctca ctec ctia ctic ctor ctot ctrc ctta eaba eaca eacc eaec eara earb eare earo eart eata eate eati ebac ebba ebbc ebbo ebbr ebcc eber ebic ebit eboe eboo ebor ebro ecaa ecac ecai ecao ecar ecat ecbc ecbe ecca eccb eccc ecce ecci ecco ecct ecib ecit eco- ecot ecra ecrc ecri ecrr ect- ecta ectc ecto eeca eeea eeee eeoc eera eerc eero eeta eetc eete eiao eica eico eiec eiei eier eira eire eita eitb eitc eiti eito eitr eoir eora eore eori eota eotc eoto erat erba erbb erbe erca ercc erce ereb erec erei erer eret eria eric erie erio erit erob eroc eroe eroi eroo erra errc erre erro erta etai etat etbc etbr etcc etco etec etee eter etic etio etoe etra etre etro etta ette etti etto i-be iaaa iaac iaai iaat iaba iaca iacc iacr iact iaea iaec iaia iara iarc iare iart iata iatc iate iati ibac ibar ibat ibca ibea ibec ibet ibia ibie ibot ibra ibrc ibri ibro ibtb ibtc icaa icab icac icai icao icar icat icbc icca iccb iccc icci icco iccr icct icea icec icee icer icet icoc icor icra icrc icre icrr icrt icta ieac ieat iecc ieet ieie ieio iera iere ieri ieta iett iiac iica iiie iiii iiio iiit iioi iioo iira iirc iita iitr iitt ioba iobi ioci ioee ioii ioio ioit iooi iooo iora iore iori iota iote ioto irac irae irai irao irar irbe irca ircc iree irer iri- iria iric irie irio irob iroc irra irrc irre irri irta irte irti itaa itac itai itar itat itbe itea itec iter itet itia itic itie itoi itoo itor itra itri itta itto o-eo oaer oaic oara oare oate obai obba obbo obea obec ober obet obia obie obit oboe oboi obor obot obra obre obri obro ocab ocac ocat ocbc occa occc occi occt oce ocee