-er a-a a-b aaa aab aae aak aap aar aas ab- aba abb abe abk abp abr abs aea aeb aee aek aep aer aes aka akb ake akk akp akr aks ap- apa apb ape apk app apr aps ar- ara arb are ark arp arr ars as- asa asb ase ask asp asr ass b-p baa bab bae bak bap bar bas bba bbb bbe bbk bbp bbr bbs be- bea beb bee bek bep ber bes bka bkb bke bkk bkp bkr bks bpa bpb bpe bpp bpr bps bra brb bre brk brp brr brs bsa bsb bse bsk bsp bsr bss eaa eab eae eak eap ear eas eba ebb ebe ebk ebp ebr ebs eea eeb eee eek eep eer ees eka ekb eke ekp ekr eks ep- epa epb epe epp epr eps era erb ere erk erp err ers es- esa esb ese esk esp esr ess ka- kaa kab kae kak kap kar kas kba kbb kbe kbk kbp kbr kbs ke- kea keb kee kek kep ker kes kkb kke kkk kkp kkr kks kpa kpe kpk kpp kpr kps kra krk krp krr krs ksa ksb kse ksk ksp ksr kss p-p paa pab pae pak pap par pas pba pbb pbe pbk pbp pbr pbs pea peb pee pek pep per pes pka pkb pke pkp pkr pks ppa ppb ppe ppk ppp ppr pps pra prb pre prk prp prr prs ps- psa psb pse psk psp psr pss ra- raa rab rae rak rap rar ras rba rbb rbe rbk rbp rbr rbs re- rea reb ree rek rep rer res rkb rke rkk rkp rks rpa rpb rpe rpk rpp rpr rps rra rrb rrk rrp rrr rrs rsa rsb rse rsk rsp rsr rss saa sab sae sak sap sar sas sba sbb sbe sbk sbp sbr sbs se- sea seb see sek sep ser ses sk- ska skb ske skk skp skr sks spa spb spe spk spp spr sps sr- sra srb sre srk srp srr srs ss- ssa ssb sse ssk ssp ssr sss

-ase a-ak a-be aaaa aaab aaae aaap aaar aaas aaba aabb aabp aaea aaep aaes aaka aake aapa aaps aara aare aarp aars aasa aase aass abaa abab abae abak abap abar abas abb- abba abbb abbe abbr abbs abee aber abes abpa abpp abpr abps abra abrs abs- absa abse absp abss aeap aeas aebs aeer aeka aer- aera aers aess akaa akae akap akar akas akee aker akes akka akr- akra akre aksa apak apap apar apas apba apbr apbs apea apep aper apes apke appa appr apps apra apre aprs apsa apse apss arab arae arak arap arar aras arba arbe arbs area aree arek arep ares arka arke arks arpa arpe arps arr- arra arre arrk arrr arrs ars- arsa arse arsk asaa asab asae asak asap asar asas asba asea asee asek asep aser ases aska aske askr asks aspa aspe aspr asps asra asrs assa asse assk assp assr asss baaa baak baar baas baba babb babe babr babs baek baer baes bak- baka bake bakr baks bapa bape bapp baps bar- bara barb bare bark barr bars basa base bask bass bbas bbbb bbbs bbeb bbpr beak beap bear beas beba bebb bebe beeb beek beep beer bees beka beke beks bera bere berk berr bers bes- besa bese besk bess bkpr bksp bpea bpsa brab brae brak bras brea breb bree brek brep brer bres brka brkb brrr brrs brsb brsr bsaa bsap bsas bsea bseb bsee bser bses bspp bspr bsra bsse eaba eapp eaps eara earb eare earp ears easa ease ebba ebbr ebbs eber ebes ebsa eeea eeee eees eeka eeke eeks eeps eera eers eese eesk eka- ekab ekeb ekek eker ekes ekka ekpe epaa epas epee eper epes eppa eppp epps epra eprb eprp eprs epsa epsp epss erap eras erba erbb erbe ereb erer eres erke erks erpa erpe erps erra erre errs ersa erse esab esar esas esba esbs esea esee esek eser eses eska eske esks espa espe espp esps esra essa esse essp kaaa kaab kaak kaap kaar kaas kaba kabb kabe kabr kaep kaer kaes kaka kake kakk kaks kap- kapa kape kapp kaps kara karb kare kark karp karr kars kas- kasa kasb kase kask kasp kasr kass kbaa kbab kbae kbak kbap kbar kbas kbba kbbb kbbe kbbk kbbr kbbs kbeb kbee kbek kber kbes kbkb kbkk kbkr kbpa kbpe kbpk kbpr kbps kbra kbrb kbre kbrk kbsa kbsb kbsk kbsr kbss kea- keak keap kear keas keba kebb kebe kebr keek keep keer kees keka kekb keke keks kep- kepa kepe keps ker- kera kerb kere kerk kerp kerr kers kesa kesb kesk kesp kesr kess kkaa kkap kkar kkba kkbb kkbe kkbr kkbs kkea kkkk kkpk kkps kkrb kkre kkrk kkrr kkrs kksa kkse kksp kksr kkss kpae kpak kpar kpas kpba kpbb kpbe kpbr kpbs kpek kper kpke kpkk kpkr kppk kppp kppr kprb kpre kprk kprp kprr kprs kpsp krab krae krak krap krar kras krba krbb krbe krbk krbr krea kreb kree krek kres krka krke krkk krkr krks krpa krpr krps krrb krre krrk krrr krrs krsa krse krsk krsr krss ksab ksak ksar ksas ksba ksbp ksbr ksbs ksea ksee ksek ksep kser kska kskb kske kskk kskr ksks kspa kspb kspe kspk kspr ksps ksra ksrb ksrp ksrr ksrs kssa ksse kssr ksss paak paap paar paas paba paea paep paer paes paka pake paks papa papb pape papp papr paps par- para pare park parp parr pars pasa pase pask pasp pass pbar pbpa pbpk pbrs pbsa pbsp peab peak peap pear peas peba peek peep peer pees peka peke pekk pepa pepe peps per- pera pere perk perp perr pers pesa pese pess ppap ppar pper pppa pppp ppps ppss prae prar pras prbs pre- preb pree prek prep pres prps prrs prsa prse prss psap psas