-hou a-ha aaaa aaab aaac aaah aaba aabb aabc aabh aabt aaca aacb aacc aach aaco aact aacu aaha aaoo aata aatc aatt abaa abab abac abat abau abb- abba abbb abbo abbt abca abcb abcc abch abct abha abho aboa abob aboh aboo abot abou abta abtu abua abut ac-t acaa acab acac acat acba acca accc acch acco acct accu acha achh acho acht achu acoa acoh acot acou acta actc acth acto actt actu acu- acuo acut ahab ahac ahah ahat ahau ahha ahoa ahot ahta ahto ahua aoah aoba aoca aotc aout at-t ataa atab atac atat atca atcc atch atco atha atho atob atoc atot atta atto attu atua atub atuc auaa auca auch auct auht aut- auth auto baaa baah baat baba babb babo babu bac- baca bacc bach baco bact baha baho baht bahu baoh bata batc bath bato batt batu bau- bbau bbbb bbch bcaa bcat bcbc bcca bccc bctc bcuc bhao bhat bhca bhcc bhot bhut bhuu boab boac boat boba bobb bobo bobu boca boch boco bocu boha boho boht bohu boob booc booh boot bota botb both boto bott boua bouh bout btaa btcc btob bttb buat buba bubb bubo bubu buca bucc buch buco bucu buha buho but- buta buto butt c-bo caaa caab caac caah caat caba cabo cabu cac- caca cacc cach caco caha caht cat- cata catb catc cath cato catt catu cauc cauo caut cbac cbat cbbc cbca cbcc cbct cbcu cbha cbot cbta cbtc ccaa ccab ccac ccat ccba ccbc ccca cccb cccc cccu ccha ccob ccoc cctb cctc cctt ccuc ccut chaa chab chac chah chao chat chau chca chch chha choc choh choo chou chto chtt chua chub chut coat coba cobb cobh cobo cobu coca coch coco coct cocu coha coho coob cooh coot cota cotb cotc coth coto cott cotu coua coub cout ctab ctba ctca ctot ctta cuau cub- cuba cubb cuca cucc cut- cuta cutc cuth cuto cutt haab haat haba habo habt habu haco haha haho haht hata hatb hath hato hatt hatu hau- haut hboc hbtu hcat hcbc hcca hccb hccc hcch hhaa hhat hhhh hoac hoat hoba hobo hoca hoch hoha hoho hoot hota hotb hoth hoto hott hotu hout htab htcc htoh huac huah huba hubb hubo huch hucu huhu huot huta huth huto hutt hutu huub oaau oahu oath obba obbo obot obuh ocab ocac ocat ocbc occa occc occt ocha ocht oct- octa octo ohau ohba ohcc ohho ohob ohoh ohta ohto ohtu ooaa ooba ooha ooho oooh oooo ootb otac otha otho oto- otoh otoo otta otto ottu ouac ouat oucc ouch out- outa outb outh outo ouu- taa- taat taba tabb tabc tabo tabu taca tacc tach taco tact taha taho tahu taoa taou tata tatb tath tato tatt tatu taua taub tauc taut tbca tbcb tbcc tbta tcca tccc tccu tch- tcha tchh tcho tchu tctc thaa thao that thau thca thch thoo thot thou thtb toab toat toau toba tobo tobt tobu toca toch toco toho tohu tooa tooh toot tota totc toth toto tott touh tout ttab ttbb tttt tuao tuat tuba tubb tubo tubu tuca tucc tuch tuco tuht tuhu tuta tuto tutt tutu tuuo uabc uaca uaoc uata uath uatu uaua ubac ubba ubbo uboc ucat ucbc ucca ucha ucho ucua ucut uhoh uhta uhuh uocc utac utah utau utha utto uttu uuoc uuta uuuu