a-ha aaaa aaab aaac aaah aaas aaba aabb aabc aabh aabt aaca aacb aacc aach aacs aact aacu aaha aahs aasa aasc aass aast aasu aata aatc aatt aaus abaa abab abac abas abat abau abb- abba abbb abbs abbt abca abcb abcc abch abcs abct abha abhs abs- absa abss absu abta abts abtu abua abus abut ac-t acaa acab acac acas acat acba acca accc acch accs acct accu acha achh achs acht achu acsa acsc acss acst acta actc acth acts actt actu acu- acus acut ahab ahac ahah ahas ahat ahau ahha ahhs ahsa ahss ahta ahts ahua ahus asaa asab asac asah asas asat asau asba asbu asc- asca ascb ascc asch asct asha ashs asht ashu assa assc assh asss asst assu asta astb astc asts asub asus at-t ataa atab atac atas atat atbs atca atcc atch atcs atha aths atsb atsc atst atta atts attu atua atub atuc atus auaa auca auch auct auht ausa aush aust ausu aut- auth auts baaa baah baas baat baba babb babs babu bac- baca bacc bach bacs bact baha bahs baht bahu basa basc bash bass bast basu bata batc bath bats batt batu bau- bbas bbau bbbb bbbs bbch bbhs bcaa bcas bcat bcbc bcbs bcca bccc bccs bchs bcsa bcsc bcss bctc bcts bcuc bhat bhca bhcc bhhs bhut bhuu bsaa bsac bsas bsat bscs bshs bssc bsts btaa btcc btcs bths btss bttb btus buat buba bubb bubs bubu buca bucc buch bucs bucu buha buhs busa busc bush buss bust busu but- buta buts butt buus caaa caab caac caah caas caat caba cabs cabu cac- caca cacc cach caha cahs caht casa casb casc cash cass cast casu cat- cata catb catc cath cats catt catu cauc caus caut cbac cbat cbbc cbbs cbca cbcc cbcs cbct cbcu cbha cbhs cbsa cbsc cbta cbtc cbus ccaa ccab ccac ccas ccat ccba ccbc ccca cccb cccc cccs cccu ccha cchs ccsa ccss ccst cctb cctc cctt ccuc ccus ccut chaa chab chac chah chas chat chau chca chch chcs chha chhs chsc chsh chst chtt chua chub chus chut csaa csab csac csas csat cscb cscc csch cscs cshs cssa csta cstc csts csua csus ctab ctba ctbs ctca cths ctsa ctsc ctss ctsu ctta ctts cuau cub- cuba cubb cubs cuca cucc cusa cusb cush cuss cust cusu cut- cuta cutc cuth cuts cutt haab haas haat haba habs habt habu hacs haha hahs haht hasa hasc hash hass hast hata hatb hath hats hatt hatu hau- haus haut hbbs hbhs hbss hbtu hcat hcbc hcbs hcca hccb hccc hcch hccs hchs hcsa hcsc hcss hcst hhaa hhat hhhh hhhs hhus hsac hsas hsat hsbc hscc hsct hshs hsts hsua htab htcc hths htsc huac huah huas huba hubb hubs huch hucs hucu huhs huhu husa hush huss hust huta huth huts hutt hutu huub huus sa-c saab saac saah saas saat saba sabb sabc sabs sabu saca sacc sacs sact sacu saha sahs saht sahu sasa sasc sash sass sast sata satb satc sats satt satu saua sauc sauh saus saut sbaa sbac sbas sbbs sbca sbcc sbcs sbct sbhc sbhs sbsa sbst sbtc sbus scaa scab scac scas scat scba sccc sccs scct sch- scha schh schs scsa scsc scsh scst scsu sctc scts scua scub scut shab shac shah shas shat shau shbs shbt shca shcc shha shhh shhs shsc shts shua shub shus shut shuu ssaa ssab ssac ssas ssat ssau ssca sscc sscs sshs sssa sssb sssc sssh ssss ssta sstb sstc ssth ssts stab stac stas stat stau stbc stbs stca stcc stch stcs stcu sths stss sttc stub stuc stus stut suas suat sub- suba subb subh subs suc- succ such sucs suha suhb sus- susa suss sust susu suta sutu suus taa- taas taat taba tabb tabc tabs tabu taca tacc tach tacs tact taha tahs tahu tasa tasb tasc tash tass tast tasu tata tatb tath tats tatt tatu taua taub tauc taus taut tbas tbbs tbca tbcb tbcc tbhs tbst tbta tcbs tcca tccc tccu tch- tcha tchh tchs tchu tcsh tctc tcts thaa thas that thau thbs thca thch thss thtb thts thus tsaa tsat tsau tsbc tsca tscc tshb tshs tssa tsst tstc tsts ttab ttbb ttss tttt tuas tuat tuba tubb tubs tubu tuca tucc tuch tuhs tuht tuhu tusa tusc tush tuss tust tuta tuts tutt tutu uabc uaca uahs uasa uata uath uatu uaua ubac ubba ucas ucat ucbc ucca ucha uchs ucsa ucsb ucsc ucst ucsu ucua ucut uhss uhta uhuh us-a usaa usac usas usat usba usbc usbs usca uscc usch uscs usha ushs ushu ussa ussb ussc usss usst ussu usta ustb ustc usts usua usus utac utah utas utau utha utsa utsc uttu uuta uuuu