-ase a-be aaaa aaab aaae aaas aaba aabb aabt aaea aaes aasa aase aass aast aata aatt abaa abab abae abas abat abax abb- abba abbb abbe abbs abbt abee abes abet abs- absa abse abss abta abts aeas aebs aess aest aeta aett aetx asaa asab asae asas asat asba asea asee ases aset assa asse asss asst asta astb aste asts at-t at-x ataa atab atae atas atat atax atbs atea atee ates atex atsb atse atst atta atte atts axat axes axse ba-x baaa baas baat baba babb babe babs baes basa base bass bast bata bate bats batt baxt bbas bbbb bbbs bbeb bbet beas beat beba bebb bebe beeb bees beet bes- besa bese bess best beta bete bets bett bsaa bsas bsat bsea bseb bsee bses bset bsse bsts btaa btex btss bttb eaba easa ease east eata eate eats ebba ebbs ebes ebsa eeea eeee eees eese eeta eete eets eext esab esas esat esba esbs esea esee eses eset essa esse esst esta este ests etas etat etee etes etta ette exa- exes exta exte exts sa-x saab saae saas saat saba sabb sabe sabs saeb saes saex sasa sase sass sast sata satb sate sats satt saxa saxe saxt sbaa sbas sbbs sbsa sbse sbst se-e se-s se-t se-x seaa seab seas seat seax seba sebe sebs sebt seea seeb sees seet seex sesa sese sess sest set- seta sete sets sett setx sex- sexe sext ssaa ssab ssas ssat ssee sses sset ssex sssa sssb ssss ssta sstb ssts stab stae stas stat stax stbs stea stee stes stet stex stss taa- taas taat taba tabb tabe tabs taes tasa tasb tase tass tast tata tatb tate tats tatt tax- taxa taxe taxt tbas tbbs tbst tbta teas teat teba tees teet tesa tese tess test teta tete tets tett tetx texa text tsaa tsat tses tset tssa tsse tsst tsts ttab ttbb ttss tttt txaa xate xats xbee xexe xtbs xtea xxxx