-ase a-be aaaa aaab aaac aaae aaap aaar aaas aaba aabb aabc aabp aaca aacb aacc aace aacp aacr aacs aaea aaec aaep aaes aapa aapc aaps aara aarc aare aarp aars aasa aasc aase aass abaa abab abac abae abap abar abas abb- abba abbb abbe abbr abbs abca abcb abcc abcp abcr abcs abec abee aber abes abpa abpc abpp abpr abps abra abrc abrs abs- absa abse absp abss acaa acab acac acae acap acar acas acba acca accc acce accp accs ace- acea acec acer aces acpa acpe acpr acps acr- acra acrc acre acrr acrs acsa acsc acse acss aeac aeap aeas aebs aecb aeer aer- aera aerc aers aesc aess apac apap apar apas apba apbr apbs apca apcb apcc apcr apcs apea apec apep aper apes appa appc appr apps apra aprc apre aprs apsa apse apss arab arac arae arap arar aras arba arbe arbs arc- arca arce arcs area arec aree arep ares arpa arpe arps arr- arra arrc arre arrr arrs ars- arsa arsc arse asaa asab asac asae asap asar asas asba asc- asca ascb ascc asce ascp ascr asea asec asee asep aser ases aspa aspc aspe aspr asps asra asrc asrs assa assc asse assp assr asss baaa baar baas baba babb babe babr babs bac- baca bacc bace bacs baer baes bapa bapc bape bapp baps bar- bara barb barc bare barr bars basa basc base bass bbas bbbb bbbs bbeb bbpr bbrc bcaa bcap bcar bcas bcbc bcbp bcbs bcca bccc bccs bcec bcer bces bcpp bcps bcra bcrs bcsa bcsc bcss beap bear beas beba bebb bebe beca becs beeb beep beer bees bera berc bere berr bers bes- besa bese bess bpcp bpea bprc bpsa brab brac brae bras brca brcb brce brea breb brec bree brep brer bres brrr brrs brsb brsr bsaa bsac bsap bsas bscp bscs bsea bseb bsec bsee bser bses bspp bspr bsra bssc bsse caaa caab caac caap caas caba cabe cabs cac- caca cacc cace cacr caec caer caes capa capb capc cape capp caps cara carb carc care carp carr cars casa casb casc case casp casr cass cbac cbar cbbc cbbs cbca cbcc cbce cbcp cbcr cbcs cbea cbec cbee cber cbpc cbpp cbre cbsa cbsc cbse ccaa ccab ccac ccap ccar ccas ccba ccbc ccca cccb cccc cccp cccs ccee ccpa ccpe ccpp ccpr ccps ccra ccrc ccre ccrp ccrs ccsa ccsp ccss ceac cear ceas ceba cebp cebs cec- ceca cece cecp cecs ceeb ceec cees cepa cepc cepe cepp cepr ceps cer- cera cerc cere cerp cers cesa cesc cese cesp cesr cess cpaa cpac cpap cpas cpbc cpca cpce cpcs cpea cpeb cpep cper cppa cpps cpre cprs cpsa cpsc cpsr crab crac crap crar cras crbc crca crcc crce crcr cre- crea creb crec cree crep cres crpc crps crsa crsp crss csaa csab csac csar csas cscb cscc csce cscr cscs csea csec csee csep cser cspa cspb cspc cspe csps csra csrc csrs cssa csse cssr eaba eaca eacc eaec eapc eapp eaps eara earb eare earp ears easa ease ebac ebba ebbc ebbr ebbs ebcc eber ebes ebsa ecaa ecac ecar ecbc ecbe ecca eccb eccc ecce eces ecpa ecpp ecra ecrc ecrr ecsa ecsc ecse ecsp ecss eeca eecs eeea eeee eees eeps eera eerc eers eese epaa epac epas epcc epec epee eper epes eppa eppc eppp epps epra eprb eprp eprs epsa epsc epsp epss erap eras erba erbb erbe erca ercc erce ercp ereb erec erer eres erpa erpe erps erra errc erre errs ersa erse esab esac esar esas esba esbs esca escb esce escr escs esea esee eser eses espa espc espe espp esps esra essa esse essp paap paar paas paba paca pace pacs paea paec paep paer paes papa papb pape papp papr paps par- para parc pare parp parr pars pasa pasc pase pasp pass pbac pbar pbcc pbpa pbrs pbsa pbsp pcaa pcae pcap pcas pcba pcbc pcbs pcca pccc pcce pccs pcea pcep pcer pcpb pcpp pcps pcra pcrc pcre pcsa pcse peab peac peap pear peas peba peca pece pecr pecs peec peep peer pees pepa pepe peps per- pera perc pere perp perr pers pesa pese pess ppac ppap ppar ppcc ppcs pper pppa pppp ppps pprc ppss prae prar pras prbc prbs prca prcc prcp prcs pre- preb prec pree prep pres prps prrs prsa prsc prse prss psac psap psas psbr psca pseb psec pspp pspr psps psrp pssa pssc psse raab raas raba rabb rabe rabs rac- raca racc race racs raec raep raer raes rapa rapc rape rapp raps rara rarb rare rars rasa rasc rase rasp rass rbbb rbbr rbbs rbsp rbss rcac rcas rcbc rccb rccc rccs rcep rcps rcsa rcsc rcss rea- reac reae reap rear reas reba rebb rebe rebs reca recc rece recp recr recs reeb reep rees repe repp repr reps rera rere rers resa rese resp ress rpca rpcs rpps rras rrrr rrsp rsaa rscc rscs rsee rspb rsps rsre rssa sa-c saab saac saae saap saar saas saba sabb sabc sabe sabr sabs saca sacc sace sacr sacs saeb saer saes sapa sape sapp saps sara sarc sare sarp sarr sars sasa sasc sase sass sbaa sbac sbar sbas sbbs sbca sbcc sbcs sber sbsa sbse sbsp scaa scab scac scap scar scas scba sccc scce sccp sccs scea scec scee scep scer scpa scpb scpe scps scr- scra scrc scre scrs scsa scsc scsr se-c se-e se-s seaa seab seac seap sear seas seba sebe sebs sec- seca secc sece secr secs seea seeb seec seep seer sees sepa sepe sepp sepr seps sera serb serc sere serp serr sers sesa sesc sese sess sp-a spac spae spap spar spas spca spcc spcs spea speb spec spee sper spes spps sprs spsa spse spsp spss sras srbc srcc sreb srec sres srpc srps srsp ssaa ssab ssac ssap ssas ssbr