-ase a-be aaaa aaab aaac aaae aaap aaas aaba aabb aabc aabp aaca aacb aacc aace aacp aacs aaea aaec aaep aaes aapa aapc aaps aasa aasc aase aass abaa abab abac abae abap abas abb- abba abbb abbe abbs abca abcb abcc abcp abcs abec abee abes abpa abpc abpp abps abs- absa abse absp abss acaa acab acac acae acap acas acba acca accc acce accp accs ace- acea acec aces acpa acpe acps acsa acsc acse acss aeac aeap aeas aebs aecb aesc aess apac apap apas apba apbs apca apcb apcc apcs apea apec apep apes appa appc apps apsa apse apss asaa asab asac asae asap asas asba asc- asca ascb ascc asce ascp asea asec asee asep ases aspa aspc aspe asps assa assc asse assp asss baaa baas baba babb babe babs bac- baca bacc bace bacs baes bapa bapc bape bapp baps basa basc base bass bbas bbbb bbbs bbeb bcaa bcap bcas bcbc bcbp bcbs bcca bccc bccs bcec bces bcpp bcps bcsa bcsc bcss beap beas beba bebb bebe beca becs beeb beep bees bes- besa bese bess bpcp bpea bpsa bsaa bsac bsap bsas bscp bscs bsea bseb bsec bsee bses bspp bssc bsse caaa caab caac caap caas caba cabe cabs cac- caca cacc cace caec caes capa capb capc cape capp caps casa casb casc case casp cass cbac cbbc cbbs cbca cbcc cbce cbcp cbcs cbea cbec cbee cbpc cbpp cbsa cbsc cbse ccaa ccab ccac ccap ccas ccba ccbc ccca cccb cccc cccp cccs ccee ccpa ccpe ccpp ccps ccsa ccsp ccss ceac ceas ceba cebp cebs cec- ceca cece cecp cecs ceeb ceec cees cepa cepc cepe cepp ceps cesa cesc cese cesp cess cpaa cpac cpap cpas cpbc cpca cpce cpcs cpea cpeb cpep cppa cpps cpsa cpsc csaa csab csac csas cscb cscc csce cscs csea csec csee csep cspa cspb cspc cspe csps cssa csse eaba eaca eacc eaec eapc eapp eaps easa ease ebac ebba ebbc ebbs ebcc ebes ebsa ecaa ecac ecbc ecbe ecca eccb eccc ecce eces ecpa ecpp ecsa ecsc ecse ecsp ecss eeca eecs eeea eeee eees eeps eese epaa epac epas epcc epec epee epes eppa eppc eppp epps epsa epsc epsp epss esab esac esas esba esbs esca escb esce escs esea esee eses espa espc espe espp esps essa esse essp paap paas paba paca pace pacs paea paec paep paes papa papb pape papp paps pasa pasc pase pasp pass pbac pbcc pbpa pbsa pbsp pcaa pcae pcap pcas pcba pcbc pcbs pcca pccc pcce pccs pcea pcep pcpb pcpp pcps pcsa pcse peab peac peap peas peba peca pece pecs peec peep pees pepa pepe peps pesa pese pess ppac ppap ppcc ppcs pppa pppp ppps ppss psac psap psas psca pseb psec pspp psps pssa pssc psse sa-c saab saac saae saap saas saba sabb sabc sabe sabs saca sacc sace sacs saeb saes sapa sape sapp saps sasa sasc sase sass sbaa sbac sbas sbbs sbca sbcc sbcs sbsa sbse sbsp scaa scab scac scap scas scba sccc scce sccp sccs scea scec scee scep scpa scpb scpe scps scsa scsc se-c se-e se-s seaa seab seac seap seas seba sebe sebs sec- seca secc sece secs seea seeb seec seep sees sepa sepe sepp seps sesa sesc sese sess sp-a spac spae spap spas spca spcc spcs spea speb spec spee spes spps spsa spse spsp spss ssaa ssab ssac ssap ssas ssca sscc ssce sscp sscs ssec ssee ssep sses sspa sspc sspe ssps sssa sssb sssc ssss