-er a-a a-b a-i aaa aab aae aaf aai aak aar aas ab- aba abb abe abf abi abk abr abs aea aeb aee aef aei aek aer aes af- afa afb afe aff afi afk afr afs ai- aia aib aie aif aii aik air ais aka akb ake aki akk akr aks ar- ara arb are arf ari ark arr ars as- asa asb ase asf asi ask asr ass baa bab bae baf bai bak bar bas bba bbb bbe bbf bbi bbk bbr bbs be- bea beb bee bef bei bek ber bes bfa bfb bfe bff bfi bfr bfs bi- bia bib bie bif bii bik bir bis bka bkb bke bkf bkk bkr bks bra brb bre brf bri brk brr brs bsa bsb bse bsf bsi bsk bsr bss eaa eab eae eaf eai eak ear eas eba ebb ebe ebf ebi ebk ebr ebs eea eeb eee eef eek eer ees ef- efa efb efe eff efi efr efs eia eib eie eif eii eik eir eis eka ekb eke ekf eki ekr eks era erb ere erf eri erk err ers es- esa esb ese esf esi esk esr ess faa fab fae faf fai fak far fas fba fbb fbe fbf fbi fbk fbr fbs fea feb fee fef fei fek fer fes ffa ffe fff ffi ffk ffr ffs fia fib fie fif fii fik fir fis fka fkb fkf fki fkk fra frb fre frf fri frk frr frs fsa fsb fse fsf fsi fsk fsr fss i-f ia- iaa iab iae iaf iai iar ias iba ibb ibe ibf ibi ibk ibr ibs ie- iea iee ief iei iek ier ies ifa ifb ife iff ifi ifr ifs iia iib iie iif iii iir iis ika ikb ike ikf iki ikk ikr iks ir- ira irb ire irf iri irk irr irs is- isa isb ise isf isi isk isr iss ka- kaa kab kae kaf kai kak kar kas kba kbb kbe kbf kbi kbk kbr kbs ke- kea keb kee kef kei kek ker kes kfa kff kfi kfs kia kib kie kif kii kik kir kis kkb kke kki kkk kkr kks kra krf kri krk krr krs ksa ksb kse ksf ksi ksk ksr kss ra- raa rab rae raf rai rak rar ras rba rbb rbe rbf rbi rbk rbr rbs re- rea reb ree ref rei rek rer res rfa rfb rfe rff rfi rfk rfr rfs ria rib rie rif rii rik rir ris rkb rke rkf rkk rks rra rrb rrf rri rrk rrr rrs rsa rsb rse rsf rsi rsk rsr rss saa sab sae saf sai sak sar sas sba sbb sbe sbf sbi sbk sbr sbs se- sea seb see sef sei sek ser ses sfa sfb sfe sff sfi sfk sfr sfs sia sib sie sif sii sik sir sis sk- ska skb ske skf ski skk skr sks sr- sra srb sre srf sri srk srr srs ss- ssa ssb sse ssf ssi ssk ssr sss

-ase a-ak a-be a-ii aaaa aaab aaae aaaf aaai aaar aaas aaba aabb aabi aaea aaes aafa aafb aaff aafi aaib aaii aais aaka aake aara aare aari aars aasa aase aasf aasi aass abaa abab abae abaf abai abak abar abas abb- abba abbb abbe abbi abbr abbs abee aber abes abff abia abib abie abir abis abra abri abrs abs- absa abse absf absi abss aeaf aeas aebi aebs aeer aeka aer- aera aeri aers aess afaa afak afar afbs afee afek afer afes affa affi affs afia afib afif afik afir afis afka afkr afr- afra afre afri afrs afsa afsb aiai aias aiba aiea aiee aiff aifs aiia aiib aiir aika aike aiki aiks aira aire airi airs aisa aisb aise aisi aisk aisr akaa akae akai akar akas akee aker akes akia akie akif akik akir akis akka akki akr- akra akre aksa aksi arab arae araf arai arak arar aras arba arbe arbi arbs area aree aref arei arek ares arfa arfb arff arfs aria arib arie arif arii arik aris arka arke arki arks arr- arra arre arri arrk arrr arrs ars- arsa arse arsi arsk asaa asab asae asaf asai asak asar asas asba asea asee asek aser ases asfa asfi asia asie asif asii asik asir asis aska aske aski askr asks asra asrs assa asse assi assk assr asss ba-i baaa baaf baak baar baas baba babb babe babi babr babs baek baer baes baff baia baib baie baik bair bais bak- baka bake baki bakr baks bar- bara barb bare barf bari bark barr bars basa base basf basi bask bass bbas bbbb bbbs bbeb beaf beak bear beas beba bebb bebe bebi beeb beef beek beer bees befa befe beff beia beik beir beis beka beke beki beks bera bere beri berk berr bers bes- besa bese besk bess bfas bffs bfsi bfsr biaf biak biar bias biba bibb bibe bibi bibs bieb bief bier bies bifa biff bifi biis bike bira birb bire biri birk birr birs bis- bisa bise bisk biss brab brae braf brai brak bras brea breb bree bref brei brek brer bres bria brie brik bris brka brkb brrr brrs brsb brsr bsaa bsas bsea bseb bsee bser bses bsfa bsff bsfs bsra bsse eaaf eaba eafb eaif eara earb eare ears easa ease easi ebba ebbr ebbs eber ebes ebis ebsa eeea eeee eees eefa eefe eeka eeke eeks eera eers eese eesi eesk efab efas efbr efes effa effi effs efik efke efsa efsi eiei eier eies eifs eika eike eiki eiks eira eire eirs eisa eise eisk eiss eka- ekab ekeb ekek eker ekes ekis ekka ekki eksi eraf eras erba erbb erbe ereb erei erer eres erfs eria erie erik eris erke erki erks erra erre errs ersa erse ersi esab esai esar esas esba esbs esea esee esek eser eses esfs esie esik esis eska eske