-er a-a a-b aaa aab aae aak aar aas aau ab- aba abb abe abk abr abs abu aea aeb aee aek aer aes aeu aka akb ake akk akr aks aku ar- ara arb are ark arr ars aru as- asa asb ase ask asr ass asu au- aua aub aue auk aur aus b-u baa bab bae bak bar bas bau bba bbb bbe bbk bbr bbs bbu be- bea beb bee bek ber bes beu bka bkb bke bkk bkr bks bra brb bre brk brr brs bru bsa bsb bse bsk bsr bss bsu bua bub bue buk bur bus buu eaa eab eae eak ear eas eau eba ebb ebe ebk ebr ebs ebu eea eeb eee eek eer ees eka ekb eke ekr eks eku era erb ere erk err ers eru es- esa esb ese esk esr ess esu eu- eua eub eue eur eus ka- kaa kab kae kak kar kas kau kba kbb kbe kbk kbr kbs kbu ke- kea keb kee kek ker kes kkb kke kkk kkr kks kku kra krk krr krs kru ksa ksb kse ksk ksr kss ksu kub kue kuk kur kus kuu ra- raa rab rae rak rar ras rau rba rbb rbe rbk rbr rbs rbu re- rea reb ree rek rer res reu rkb rke rkk rks rku rra rrb rrk rrr rrs rru rsa rsb rse rsk rsr rss rsu rua rub rue ruk rur rus ruu saa sab sae sak sar sas sau sba sbb sbe sbk sbr sbs sbu se- sea seb see sek ser ses seu sk- ska skb ske skk skr sks sku sr- sra srb sre srk srr srs ss- ssa ssb sse ssk ssr sss ssu sua sub sue suk sur sus suu ua- uaa uab uae uak uar uas uau uba ubb ube ubk ubr ubs ubu uea ueb uee uer ues uka ukb uke ukk ukr uku ur- ura urb ure urk urr urs uru usa usb use usk usr uss usu uua uue uur uus uuu

-ase a-ak a-be aaaa aaab aaae aaar aaas aaba aabb aaea aaes aaka aake aaku aara aare aars aaru aasa aase aass aasu aaus abaa abab abae abak abar abas abau abb- abba abbb abbe abbr abbs abee aber abes abra abrs abs- absa abse abss absu abua abue abuk abus aeas aebs aeer aeka aer- aera aers aess akaa akae akar akas akee aker akes akeu akka akku akr- akra akre aksa aksu akua arab arae arak arar aras arau arba arbe arbs area aree arek ares areu arka arke arks arr- arra arre arrk arrr arrs arru ars- arsa arse arsk arsu arua arub arue asaa asab asae asak asar asas asau asba asbu asea asee asek aser ases aska aske askr asks asra asrs asru assa asse assk assr asss assu asub asue asur asus auaa aube auer auke auks aur- aura aure ausa ause ausu baaa baak baar baas baba babb babe babr babs babu baek baer baes bak- baka bake bakr baks baku bar- bara barb bare bark barr bars baru basa base bask bass basu bau- bauk baur bbas bbau bbbb bbbs bbeb beak bear beas beau beba bebb bebe beeb beek beer bees beka beke beks bera bere berk berr bers beru bes- besa bese besk bess beuk beur brab brae brak bras brau brea breb bree brek brer bres brka brkb brrr brrs brsb brsr brue brus bsaa bsas bsea bseb bsee bser bses bsra bsse buar buba bubb bube bubs bubu buea buer bueu buka buke bukk buku bur- bura burb bure burk burr burs buru busa buse busk buss busu buus eaba eara earb eare ears easa ease eaus ebba ebbr ebbs eber ebes ebru ebsa ebur ebus eeea eeee eees eeka eeke eeks eera eers eese eesk eka- ekab ekeb ekek eker ekes ekka ekur eras erau erba erbb erbe ereb erer eres erke erks erra erre errs ersa erse erua erub erur erus esab esar esas esau esba esbs esea esee esek eser eses eska eske esks esku esra essa esse essu esus euba euer eur- eura eure eusa euse kaaa kaab kaak kaar kaas kaba kabb kabe kabr kabu kaer kaes kaka kake kakk kaks kaku kara karb kare kark karr kars karu kas- kasa kasb kase kask kasr kass kasu kau- kaub kaue kauk kaur kaus kbaa kbab kbae kbak kbar kbas kbba kbbb kbbe kbbk kbbr kbbs kbbu kbeb kbee kbek kber kbes kbkb kbkk kbkr kbra kbrb kbre kbrk kbru kbsa kbsb kbsk kbsr kbss kbsu kbua kbub kbue kbuk kbur kbus kbuu kea- keak kear keas keau keba kebb kebe kebr kebu keek keer kees keka kekb keke keks keku ker- kera kerb kere kerk kerr kers keru kesa kesb kesk kesr kess keur keus kkaa kkar kkba kkbb kkbe kkbr kkbs kkea kkkk kkrb kkre kkrk kkrr kkrs kksa kkse kksr kkss kksu kkua kkus kkuu krab krae krak krar kras krba krbb krbe krbk krbr krea kreb kree krek kres kreu krka krke krkk krkr krks krku krrb krre krrk krrr krrs krsa krse krsk krsr krss krsu krua krue kruk krur ksab ksak ksar ksas ksau ksba ksbr ksbs ksea ksee ksek kser kska kskb kske kskk kskr ksks ksku ksra ksrb ksrr ksrs kssa ksse kssr ksss kssu ksua ksub ksue ksuu kuar kuau kuba kubb kube kubr kubs kubu kuek kues kueu kuka kuke kukk kuks kuku kura kurb kure kurk kurr kurs kuru kusa kusb kusu kuub kuuk kuur kuuu raab raak raas raba rabb rabe rabk rabs rabu raer raes raka rake rakk raku rara rarb rare rark rars rasa rase rask rass rasu raua raub raue rauk raus rbbb rbbr rbbs rbss rea- reae reak rear reas reau reba rebb rebe rebk rebs rebu reeb reek rees reka reke reks rera rere rers reru resa rese ress reue reuk reus reuu rkss rras rrrr rsaa rsee rsre rssa rsua ruas ruba