-ase a-be aaaa aaab aaae aaas aaba aabb aabt aaea aaes aasa aase aass aast aata aatt abaa abab abae abas abat abb- abba abbb abbe abbs abbt abee abes abet abs- absa abse abss abta abts aeas aebs aess aest aeta aett asaa asab asae asas asat asba asea asee ases aset assa asse asss asst asta astb aste asts at-t ataa atab atae atas atat atbs atea atee ates atsb atse atst atta atte atts baaa baas baat baba babb babe babs baes basa base bass bast bata bate bats batt 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 btss bttb eaba easa ease east eata eate eats ebba ebbs ebes ebsa eeea eeee eees eese eeta eete eets esab esas esat esba esbs esea esee eses eset essa esse esst esta este ests etas etat etee etes etta ette saab saae saas saat saba sabb sabe sabs saeb saes sasa sase sass sast sata satb sate sats satt sbaa sbas sbbs sbsa sbse sbst se-e se-s se-t seaa seab seas seat seba sebe sebs sebt seea seeb sees seet sesa sese sess sest set- seta sete sets sett ssaa ssab ssas ssat ssee sses sset sssa sssb ssss ssta sstb ssts stab stae stas stat stbs stea stee stes stet stss taa- taas taat taba tabb tabe tabs taes tasa tasb tase tass tast tata tatb tate tats tatt tbas tbbs tbst tbta teas teat teba tees teet tesa tese tess test teta tete tets tett tsaa tsat tses tset tssa tsse tsst tsts ttab ttbb ttss tttt