a-ha aaaa aaab aaaf aaah aaas aaba aabb aabh aabt aafa aafb aaff aaha aahs aaoo aasa aasf aass aast aata aatf aatt abaa abab abaf abas abat abb- abba abbb abbo abbs abbt abff abha abho abhs aboa abob abof aboh aboo abos abot abs- absa absf abss abta abts afaa afao afat afbs affa affo affs afft afhs afoa afoo afsa afsb afst afta afts ahab ahah ahas ahat ahfa ahha ahhs ahoa ahot ahsa ahso ahss ahta ahto ahts aoah aoba aoss aotf asaa asab asaf asah asao asas asat asba asbo asfa asha ashs asht asob asof asos asot assa assh asso asss asst asta astb asto asts at-t ataa atab atas atat atbs atfb atfs atha atho aths atob atof atos atot atsb atst atta atto atts baaa baaf baah baas baat baba babb babo babs baff bafo baft baha baho bahs baht baoh baos basa basf bash baso bass bast bata batf bath bato bats batt bbas bbbb bbbs bbhs bfas bffs bfhs bfta bfts bftt bhao bhat bhff bhhs bhot bhsf boab boas boat boba bobb bobo bobs bofa boff bofh bofs boha boho bohs boht boob boof booh boos boot bosa bosh boso boss bost bota botb both boto bots bott bsaa bsas bsat bsfa bsff bsfs bshs bsos bsts btaa btaf bths btob btss bttb faaa faah faas faba fabo fabs fafa faff fafo faha fahs fasa fash faso fass fast fata fatf fath fato fats fatt fbhs ffff ffhs ffsa ffss fftf fhas fhfs fhhs fhss foaf foba fobs fobt fofo fohs foof foos foot fosa fosb fosh foso foss fost fota foth foto fots fott fsas fsfo fshb fshs fssa fssf fsta fths ftos ftsa haab haaf haas haat haba habo habs habt hafb haff hafs haft haha haho hahs haht hasa hash hass hast hata hatb hath hato hats hatt hbbs hbhs hbos hbss hfba hfhs hfss hhaa hhat hhhh hhhs hhof hoas hoat hoba hobo hobs hoff hofs hoha hoho hoof hoos hoot hosa hosh hoss host hota hotb hoth hoto hots hott hsas hsat hsfs hshs hsob hsts htab hths htoh oafo oafs oahs oass oast oath oats obas obba obbo obhs obos obot obss obst obts ofah ofas off- offa offh offo offs ofst ofta ohba ohho ohhs ohob ohoh ohos ohso ohss ohta ohto ooaa ooba ooff oofs ooha ooho oohs oooh oooo ooos oosa oost ootb oots osaf osas osat osba osfa osha osho oshs osoo osos ossa ossb osso osta osts otas otbs otha otho oths oto- otof otoh otoo otos otsa otso otta otto otts s-os saab saaf saah saas saat saba sabb sabo sabs safa safb saff safo saft saha saho sahs saht saos sasa sasf sash saso sass sast sata satb sato sats satt sbaa sbas sbbs sbhs sbot sbsa sbst sfas sfba sfha sfhs sfos sfss sfts shab shah shao shas shat shbs shbt shft shha shhh shhs shoa shof shoo shos shot shts soas soat soba sobo sobs sobt sofa sofo soft soha sohh soho sohs soof soos soot sosa sosh soso soss sost sota soth soto sots ssaa ssab ssao ssas ssat sshs ssot sssa sssb sssf sssh ssss ssta sstb ssth ssts stab stas stat stbs sths stoa stob stof stoo stos stot stsf stss taa- taaf taas taat taba tabb tabo tabs tafa taff tafo taft taha taho tahs taoa taos tasa tasb tash tass tast tata tatb tath tato tats tatt tbaf tbas tbbs tbhs tbst tbta tfot tfss thaa thao thas that thbs thof thoo thos thot thss thtb thts toab toas toat toba tobo tobs tobt tofa toff tofo toft toho tooa toof tooh toos toot tosa tosb tosh toso toss tost tota toth toto tots tott tsaa tsao tsat tshb tshs tsob tsos tssa tssf tsst tsts ttab ttbb ttfa ttff ttss tttt