-er a-a a-b aaa aab aae aak aao aar aas ab- aba abb abe abk abo abr abs aea aeb aee aek aeo aer aes aka akb ake akk ako akr aks aoa aob aoe aok aoo aor aos ar- ara arb are ark aro arr ars as- asa asb ase ask aso asr ass baa bab bae bak bao bar bas bba bbb bbe bbk bbo bbr bbs be- bea beb bee bek beo ber bes bka bkb bke bkk bko bkr bks boa bob boe bok boo bor bos bra brb bre brk bro brr brs bsa bsb bse bsk bso bsr bss eaa eab eae eak eao ear eas eba ebb ebe ebk ebo ebr ebs eea eeb eee eek eeo eer ees eka ekb eke eko ekr eks eo- eoa eob eoe eok eoo eor eos era erb ere erk ero err ers es- esa esb ese esk eso esr ess ka- kaa kab kae kak kao kar kas kba kbb kbe kbk kbo kbr kbs ke- kea keb kee kek keo ker kes kkb kke kkk kkr kks koa kob koe kok koo kor kos kra krk kro krr krs ksa ksb kse ksk kso ksr kss oaa oab oae oak oao oar oas ob- oba obb obe obk obo obr obs oea oeb oee oeo oer oes oka okb oke okk oko okr oks oo- ooa oob ook ooo oor oos or- ora orb ore ork oro orr ors os- osa osb ose osk oso osr oss ra- raa rab rae rak rao rar ras rba rbb rbe rbk rbo rbr rbs re- rea reb ree rek reo rer res rkb rke rkk rko rks roa rob roe rok roo ror ros rra rrb rrk rrr rrs rsa rsb rse rsk rso rsr rss saa sab sae sak sao sar sas sba sbb sbe sbk sbo sbr sbs se- sea seb see sek seo ser ses sk- ska skb ske skk sko skr sks soa sob soe sok soo sor sos sr- sra srb sre srk sro srr srs ss- ssa ssb sse ssk sso ssr sss

-ase -ose a-ak a-be a-ok aaaa aaab aaae aaar aaas aaba aabb aaea aaes aaka aake aaoe aaoo aara aare aaro aars aasa aase aass abaa abab abae abak abar abas abb- abba abbb abbe abbo abbr abbs abee aber abes aboa abob abok aboo abor abos abra abro abrs abs- absa abse abss aeas aebs aeer aeka aer- aera aero aers aess akaa akae akao akar akas akee aker akes akka akko akok akos akr- akra akre aksa aoba aoks aora aorb aors aoss arab arae arak arar aras arba arbe arbs area aree arek areo ares arka arke arko arks aroa arob aroe aroo aror aros arr- arra arre arrk arro arrr arrs ars- arsa arse arsk arso asaa asab asae asak asao asar asas asba asbo asea asee asek aser ases aska aske asko askr asks asob asok asor asos asra asro asrs assa asse assk asso assr asss baaa baak baar baas baba babb babe babo babr babs baek baer baes bak- baka bake bako bakr baks baos bar- bara barb bare bark baro barr bars basa base bask baso bass bbas bbbb bbbs bbeb beak bear beas beba bebb bebe bebo beeb beek beer bees beka beke beko beks beo- beok beor beos bera bere berk bero berr bers bes- besa bese besk beso bess boab boak boar boas boba bobb bobe bobo bobs boea boee boeo boer boes boka boke boko boks boob booe book boor boos bor- bora bore bork boro borr bors bosa bose bosk boso boss brab brae brak brao bras brea breb bree brek breo brer bres brka brkb broa brob broe brok broo bror bros brrr brrs brsb brsr bsaa bsas bsea bseb bsee bser bses bsos bsra bsse eaba eara earb eare earo ears easa ease easo ebba ebbo ebbr ebbs eber ebes eboe eboo ebor ebos ebro ebsa eeea eeee eees eeka eeke eeks eera eero eers eese eesk eka- ekab ekeb ekek eker ekes ekka ekoa ekos eoes eoka eora eore eras erba erbb erbe ereb erer eres erke erks erob eroe eroo eros erra erre erro errs ersa erse erso esab esar esas esba esbo esbs esea esee esek eseo eser eses eska eske esko esks eso- esok esos esra essa esse esso k-os kaaa kaab kaak kaar kaas kaba kabb kabe kabo kabr kaeo kaer kaes kaka kake kakk kako kaks kaoa kaok kaor kaos kara karb kare kark karo karr kars kas- kasa kasb kase kask kaso kasr kass kbaa kbab kbae kbak kbar kbas kbba kbbb kbbe kbbk kbbo kbbr kbbs kbeb kbee kbek kbeo kber kbes kbkb kbkk kbko kbkr kboa kbob kboe kbok kboo kbos kbra kbrb kbre kbrk kbro kbsa kbsb kbsk kbso kbsr kbss kea- keak kear keas keba kebb kebe kebr keek keer kees keka kekb keke keko keks keok keos ker- kera kerb kere kerk kero kerr kers kesa kesb kesk keso kesr kess kkaa kkar kkba kkbb kkbe kkbo kkbr kkbs kkea kkkk kkoa kkob kkoo kkor kkrb kkre kkrk kkro kkrr kkrs kksa kkse kksr kkss koab koae koak koar koas koba kobb kobe kobk kobo kobr kobs koea koes koka kokb koke kokk koko kokr koks koob kook kooo koor koos kora korb kore kork koro korr kors kos- kosa kosb kose koso kosr koss krab krae krak krar kras krba krbb krbe krbk krbr krea kreb kree krek kreo kres krka krke krkk krko krkr krks kroa krob kroe krok kroo kror kros krrb krre krrk krro krrr krrs krsa krse krsk krsr krss ksab ksak ksar ksas ksba ksbr ksbs ksea ksee ksek kseo kser kska kskb kske kskk ksko kskr ksks ksob ksok ksoo ksor ksos ksra ksrb ksro ksrr ksrs kssa ksse ksso kssr ksss o-eo oaer oaes oake oaks oara oare oars oase oass obak obas obba obbo obea ober obes obkb oboe obok obor