-ase a-be aaaa aaab aaae aaap aaas aaba aabb aabp aabt aaea aaep aaes aapa aaps aapt aasa aase aass aast aata aatt abaa abab abae abap abas abat abb- abba abbb abbe abbs abbt abee abes abet abpa abpp abps abs- absa abse absp abss abta abts aeap aeas aebs aess aest aeta aett apap apas apat apba apbs apea apep apes apet appa apps appt apsa apse apss apta apte apts aptt asaa asab asae asap asas asat asba asea asee asep ases aset aspa aspe asps aspt assa asse assp asss asst asta astb aste astp asts at-t ataa atab atae atap atas atat atbs atea atee atep ates atsb atse atst atta atte attp atts baaa baas baat baba babb babe babs baes bapa bape bapp baps bapt basa base bass bast bata bate bats batt bbas bbbb bbbs bbeb bbet beap beas beat beba bebb bebe beeb beep bees beet bes- besa bese bess best beta bete bets bett bpea bpsa bsaa bsap bsas bsat bsea bseb bsee bses bset bspp bsse bsts btaa btbp btps btss bttb eaba eapp eaps easa ease east eata eate eats ebba ebbs ebes ebsa eeea eeee eees eeps eese eeta eete eets epaa epas epee epes eppa eppp epps epsa epsp epss epta epte esab esas esat esba esbs esea esee eses eset espa espe espp esps essa esse essp esst esta este estp ests etap etas etat etee etes etta ette paap paas paat paba pabt paea paep paes papa papb pape papp paps pasa pase pasp pass past pata pate pats patt pbpa pbsa pbsp peab peap peas peat peba peep pees peet pepa pepe peps pesa pese pess pest peta pete pets pett ppap pppa pppp ppps ppss ppta ppts pptt psap psas psat psbt pseb pspp psps pssa psse psst psts ptab ptas ptsa saab saae saap saas saat saba sabb sabe sabs saeb saes sapa sape sapp saps sasa sase sass sast sata satb sate sats satt sbaa sbas sbbs sbsa sbse sbsp sbst se-e se-s se-t seaa seab seap seas seat seba sebe sebs sebt seea seeb seep sees seet sepa sepe sepp seps sept sesa sese sess sest set- seta sete sets sett sp-a spae spap spas spat spea speb spee spes spet spps spsa spse spsp spss spst spta sptb spts ssaa ssab ssap ssas ssat ssee ssep sses sset sspa sspe ssps sspt sssa sssb ssss ssta sstb sstp ssts stab stae stap stas stat stbs stea stee step stes stet stpp stps stss taa- taas taat taba tabb tabe tabs taes tapa tape tapp taps tapt tasa tasb tase tasp tass tast tata tatb tate tats tatt tbas tbbs tbsp tbst tbta tbtp teas teat teba tees teet tepa tepe tepp tesa tese tesp tess test teta tete tets tett tpap tppa tppp tpsa tpte tptp tsaa tsat tses tset tsps tspt tssa tsse tsst tsts ttab ttbb ttss tttt