-er a-a a-c aaa aac aae aak aap aar aas ac- aca acc ace ack acp acr acs aea aec aee aek aep aer aes aka akc ake akk akp akr aks ap- apa apc ape apk app apr aps ar- ara arc are ark arp arr ars as- asa asc ase ask asp asr ass c-- caa cac cae cak cap car cas cca ccc cce cck ccp ccr ccs ce- cea cec cee cek cep cer ces cka ckc cks cpa cpc cpe cpk cpp cpr cps cra crc cre crk crp crr crs csa csc cse csk csp csr css eaa eac eae eak eap ear eas ec- eca ecc ece eck ecr ecs eea eec eee eek eep eer ees eka ekc eke ekp ekr eks ep- epa epc epe epp epr eps era erc ere erk erp err ers es- esa esc ese esk esp esr ess ka- kaa kac kae kak kap kar kas kca kcc kce kck kcp kcr kcs ke- kea kec kee kek kep ker kes kkc kke kkk kkp kkr kks kpa kpc kpe kpk kpp kpr kps kra krc krk krp krr krs ksa ksc kse ksk ksp ksr kss p-p paa pac pae pak pap par pas pca pcc pce pck pcp pcr pcs pea pec pee pek pep per pes pka pkc pke pkp pkr pks ppa ppc ppe ppk ppp ppr pps pra prc pre prk prp prr prs ps- psa psc pse psk psp psr pss ra- raa rac rae rak rap rar ras rca rcc rce rcp rcr rcs re- rea rec ree rek rep rer res rkc rke rkk rkp rks rpa rpc rpe rpk rpp rpr rps rra rrc rrk rrp rrr rrs rsa rsc rse rsk rsp rsr rss saa sac sae sak sap sar sas sca scc sce sck scp scr scs se- sea sec see sek sep ser ses sk- ska skc ske skk skp skr sks spa spc spe spk spp spr sps sr- sra src sre srk srp srr srs ss- ssa ssc sse ssk ssp ssr sss

-ase a-ak aaaa aaac aaae aaap aaar aaas aaca aacc aace aack aacp aacr aacs aaea aaec aaep aaes aaka aake aapa aapc aaps aara aarc aare aarp aars aasa aasc aase aass acaa acac acae acap acar acas acca accc acce accp accs ace- acea acec acek acer aces acke acks acpa acpe acpr acps acr- acra acrc acre acrr acrs acsa acsc acse acss aeac aeap aeas aeer aeka aer- aera aerc aers aesc aess akaa akae akap akar akas akca akee aker akes akka akr- akra akre aksa apac apak apap apar apas apca apcc apcr apcs apea apec apep aper apes apke appa appc appr apps apra aprc apre aprs apsa apse apss arac arae arak arap arar aras arc- arca arce arcs area arec aree arek arep ares arka arke arks arpa arpe arps arr- arra arrc arre arrk arrr arrs ars- arsa arsc arse arsk asaa asac asae asak asap asar asas asc- asca ascc asce ascp ascr asea asec asee asek asep aser ases aska aske askr asks aspa aspc aspe aspr asps asra asrc asrs assa assc asse assk assp assr asss caaa caac caap caas cac- caca cacc cace cack cacr caec caer caes caka cake capa capc cape capp caps cara carc care cark carp carr cars casa casc case cask casp casr cass ccaa ccac ccap ccar ccas ccca cccc cccp cccs ccee ccpa ccpe ccpp ccpr ccps ccra ccrc ccre ccrp ccrs ccsa ccsp ccss ceac cear ceas cec- ceca cece cecp cecs ceec cees ceke cepa cepc cepe cepp cepr ceps cer- cera cerc cere cerp cers cesa cesc cese cesp cesr cess ckac ckck ckcs cker ckpc ckpr ckrc cksa cpaa cpac cpap cpas cpca cpce cpcs cpea cpep cper cppa cpps cpre cprs cpsa cpsc cpsk cpsr crac crap crar cras crca crcc crce crcr cre- crea crec cree crep cres crkc crkp crpc crps crsa crsp crss csaa csac csak csar csas cscc csce cscr cscs csea csec csee csep cser cska csks cspa cspc cspe csps csra csrc csrs cssa csse cssr eaca eacc eaec eapc eapp eaps eara eare earp ears easa ease ecaa ecac ecar ecca eccc ecce eces ecka ecks ecpa ecpp ecra ecrc ecrr ecsa ecsc ecse ecsp ecss eeca eecs eeea eeee eees eeka eeke eeks eeps eera eerc eers eese eesk eka- ekek eker ekes ekka ekpe epaa epac epas epcc epec epee eper epes eppa eppc eppp epps epra eprp eprs epsa epsc epsp epss erap eras erca ercc erce ercp erec erer eres erke erks erpa erpe erps erra errc erre errs ersa erse esac esar esas esca esce escr escs esea esee esek eser eses eska eske esks espa espc espe espp esps esra essa esse essp kaaa kaak kaap kaar kaas kacc kace kacp kacs kaep kaer kaes kaka kakc kake kakk kaks kap- kapa kapc kape kapp kaps kara kare kark karp karr kars kas- kasa kasc kase kask kasp kasr kass kcaa kcac kcap kcar kcas kcca kccc kcck kccr kcea kcec kcee kcep kckc kckk kckr kcpa kcpc kcpr kcps kcrc kcrp kcrr kcrs kcsa kcsc kcse kcsp kcsr kcss kea- keak keap kear keas keca keck kecr keek keep keer kees keka kekc keke keks kep- kepa kepc kepe keps ker- kera kerc kere kerk kerp kerr kers kesa kesc kesk kesp kesr kess kkaa kkac kkap kkar kkck kkcr kkcs kkea kkkk kkpc kkpk kkps kkrc kkre kkrk kkrr kkrs kksa kkse kksp kksr kkss kpac kpae kpak kpar kpas kpcc kpcr kpcs kpek kper kpke kpkk kpkr kppc kppk kppp kppr kprc kpre kprk kprp kprr kprs kpsc kpsp krac krae krak krap krar kras krca krcc krce krcs krea krec kree krek kres krka krkc krke krkk krkr krks krpa krpr krps krrc krre krrk krrr krrs krsa krsc krse krsk krsr krss ksac ksak