-vac a-be aaaa aaab aaac aaae aaav aaba aabb aabc aabt aaca aacb aacc aace aaco aact aacu aacv aaea aaec aaev aaoe aaoo aata aatc aatt aava abaa abab abac abae abat abau abb- abba abbb abbe abbo abbt abca abcb abcc abct abec abee abet aboa abob aboo abot abou abov abta abtu abua abue abut abva ac-t acaa acab acac acae acat acba acca accc acce acco acct accu ace- acea acec acet acev acoa acoe acot acou acta actc acte acto actt actu actv acu- acue acuo acut acvv aeac aecb aect aeta aetc aeto aett aeva aoba aoca aoce aoeu aotc aout at-t ataa atab atac atae atat atca atcc atco atea atec atee ateo atob atoc atoe atot atta atte atto attu atua atub atuc auaa aube auca auce auct aut- aute auto auve avab avao avat avcc avce avco avea avec aveo aveu avot avou avva avvo baaa baat baba babb babe babo babu bac- baca bacc bace baco bact bata batc bate bato batt batu bau- bava bave bavu bbau bbbb bbeb bbet bcaa bcat bcbc bcca bccc bcec bcet bctc bcuc bcvo beat beau beav beba bebb bebe bebo beca becu beeb beet beo- beot beta betc bete beto bett betu betv bevo boab boac boat boba bobb bobe bobo bobu boca boce boco bocu boea boec boee boeo boet boob booc booe boot bota botb bote boto bott boua boue bout bova bove bovo btaa btcc btec btob bttb buat buba bubb bube bubo bubu buca bucc buce buco bucu buea bueu but- buta bute buto butt buve c-bo caaa caab caac caat caba cabe cabo cabu cac- caca cacc cace caco caec caeu cat- cata catb catc cate cato catt catu catv cauc cauo caut cava cave cavo cavu cbac cbat cbbc cbca cbcc cbce cbct cbcu cbea cbec cbee cbet cbot cbta cbtc cbtv cbva cbvb cbve ccaa ccab ccac ccat ccba ccbc ccca cccb cccc cccu cccv ccee ccob ccoc cctb cctc cctt cctv ccuc ccut ccvo ceac ceat ceba cebu cec- ceca cece ceco cect ceeb ceec ceou cet- ceta cete ceto cetv ceva cevo coat coba cobb cobe cobo cobu coca coce coco coct cocu coob coot cota cotb cotc cote coto cott cotu coua coub coue cout cova cove covo ctab ctae ctba ctca ctec ctot ctta ctvo ctvt cuau cub- cuba cubb cube cuca cucc cuce cut- cuta cutc cute cuto cutt cutv cuve cvac cvca cvcc cvet cvte eaba eaca eacc eaec eata eate eave ebac ebba ebbc ebbo ebcc eboe eboo ecaa ecac ecao ecat ecbc ecbe ecca eccb eccc ecce ecco ecct eco- ecot ecou ect- ecta ectc ecto ectv ecua eeca eeea eeee eeoc eeta eetc eete eetu eeva eota eotc eoto etat etbc etcc etco etec etee etoe etta ette etto ettu etua etvo euba eubc evac evae evat evea evet evoe evoo o-eo oaau oate obba obbo obea obec obet oboe obot ocab ocac ocat ocbc occa occc occt oce ocee ocet oct- octa octe octo oec- oeca oecc oeec oeta ooaa ooba oobe oooo ootb otac otea otee oto- otoe otoo otov otta otte otto ottu ouac ouat oucc ouea out- outa outb oute outo ouu- ovee ovet ovo- ovoo ovot taa- taat taba tabb tabc tabe tabo tabu taca tacc tace taco tact tacv taec taoa taou tata tatb tate tato tatt tatu tatv taua taub tauc taue taut tava tave tavo tbca tbcb tbcc tbce tbta tcca tccc tccu tcov tctc teac teat teba tebo tebu teca teco tect teec teet teev teta tete teto tett tetu teut teva toab toat toau toba tobe tobo tobt tobu toca toce toco toea toee toet tooa toot tota totc tote toto tott tout touv tova tove tovo ttab ttbb tteo ttoe tttt tuae tuao tuat tuba tubb tube tubo tubu tuca tucc tuco tuet tuta tute tuto tutt tutu tuuo tuva tvac tvtv uabc uaca uaoc uata uatu uatv uaua ubac ubba ubbe ubbo ubet uboc ucat ucav ucbc ucca ucea uctv ucua ucut ueba uocc uovo utac utau utec utto uttu uuoc uuta uuuu uv-a uv-b uv-c uvaa uvac uvae uvat uvea uvvu vaat vaca vace vaco vata vate vato vatt vatu vaut vava vbcc vcat veat veau veba vecc veet veta vete veto veve vevo voat voca voce voet voeu vooc voot vota vote voto voue vout vtac vtec vuca vuco vutv vvob vvvv