-ase a-be aaaa aaab aaae aaas aaba aabb aabt aaea aaes aasa aase aass aast aasu aata aatt aaus abaa abab abae abas abat abau abb- abba abbb abbe abbs abbt abee abes abet abs- absa abse abss absu abta abts abtu abua abue abus abut aeas aebs aess aest aeta aett asaa asab asae asas asat asau asba asbu asea asee ases aset assa asse asss asst assu asta astb aste asts asub asue asus at-t ataa atab atae atas atat atbs atea atee ates atsb atse atst atta atte atts attu atua atub atus auaa aube ausa ause aust ausu aut- aute auts baaa baas baat baba babb babe babs babu baes basa base bass bast basu bata bate bats batt batu bau- bbas bbau bbbb bbbs bbeb bbet beas beat beau beba bebb bebe beeb bees beet bes- besa bese bess best beta bete bets bett betu bsaa bsas bsat bsea bseb bsee bses bset bsse bsts btaa btss bttb btus buat buba bubb bube bubs bubu buea bueu busa buse buss bust busu but- buta bute buts butt buus eaba easa ease east eata eate eats eaus ebba ebbs ebes ebsa ebus eeea eeee eees eese eeta eete eets eetu esab esas esat esau esba esbs esea esee eses eset essa esse esst essu esta este ests esus etas etat etee etes etsu etta ette ettu etua euba eusa euse saab saae saas saat saba sabb sabe sabs sabu saeb saes sasa sase sass sast sata satb sate sats satt satu saua saue saus saut sbaa sbas sbbs sbsa sbse sbst sbus se-e se-s se-t se-u seaa seab seas seat seau seba sebe sebs sebt seea seeb sees seet seeu sesa sese sess sest set- seta sete sets sett ssaa ssab ssas ssat ssau ssee sses sset sssa sssb ssss ssta sstb ssts stab stae stas stat stau stbs stea stee stes stet stss stub stue stus stut suas suat sub- suba subb subs suee sues suet sueu sus- susa suse suss sust susu suta sute sutu suus taa- taas taat taba tabb tabe tabs tabu taes tasa tasb tase tass tast tasu tata tatb tate tats tatt tatu taua taub taue taus taut tbas tbbs tbst tbta teas teat teba tebu tees teet tesa tese tess test teta tete tets tett tetu teut tsaa tsat tsau tses tset tssa tsse tsst tsts ttab ttbb ttss tttt tuae tuas tuat tuba tubb tube tubs tubu tues tuet tusa tuss tust tuta tute tuts tutt tutu uaes uasa uata uatu uaua ubba ubbe ubet ueba uess us-a usaa usas usat usba usbe usbs usea usee uses uset ussa ussb usse usss usst ussu usta ustb uste usts usua usus utas utau utes utsa uttu uuta uuuu