a-a a-b aaa aab aae aaf aak aan aas ab- aba abb abe abf abk abn abs aea aeb aee aef aek aen aes af- afa afb afe aff afk afn afs aka akb ake akk akn aks an- ana anb ane anf ank ann ans as- asa asb ase asf ask asn ass baa bab bae baf bak ban bas bba bbb bbe bbf bbk bbn bbs be- bea beb bee bef bek ben bes bfa bfb bfe bff bfn bfs bka bkb bke bkf bkk bkn bks bna bnb bne bnf bnk bnn bns bsa bsb bse bsf bsk bsn bss eaa eab eae eaf eak ean eas eba ebb ebe ebf ebk ebn ebs eea eeb eee eef eek een ees ef- efa efb efe eff efs eka ekb eke ekf eks en- ena enb ene enf enk enn ens es- esa esb ese esf esk esn ess faa fab fae faf fak fan fas fba fbb fbe fbf fbk fbn fbs fea feb fee fef fek fen fes ffa ffe fff ffk ffn ffs fka fkb fkf fkk fna fnb fne fnf fnk fnn fns fsa fsb fse fsf fsk fsn fss ka- kaa kab kae kaf kak kan kas kba kbb kbe kbf kbk kbn kbs ke- kea keb kee kef kek ken kes kfa kff kfs kkb kke kkk kkn kks kn- kna kne knf knk knn ksa ksb kse ksf ksk ksn kss naa nab nae naf nak nan nas nba nbb nbe nbf nbk nbn nbs ne- nea neb nee nef nek nen nes nfa nfb nfe nff nfk nfn nfs nka nke nkf nkk nkn nks nna nnb nne nnf nnk nnn nns nsa nsb nse nsf nsk nsn nss saa sab sae saf sak san sas sba sbb sbe sbf sbk sbn sbs se- sea seb see sef sek sen ses sfa sfb sfe sff sfk sfn sfs sk- ska skb ske skf skk sks sna snb sne snf snk snn sns ss- ssa ssb sse ssf ssk ssn sss

-ana -ane -ase -ene a-ak a-be aaaa aaab aaae aaaf aaan aaas aaba aabb aaea aaen aaes aafa aafb aaff aaka aake aana aane aasa aase aasf aass abaa abab abae abaf abak aban abas abb- abba abbb abbe abbs abee aben abes abff abs- absa abse absf abss aeaf aean aeas aebn aebs aeka aena aess afaa afak afan afbs afee afek afes affa affs afka afsa afsb akaa akae akan akas akee aken akes akka akna aksa ana- anaa anab anae anak anan anas anba anbb anee anen anes anfa ank- anka anke anna annb anne anns ansa anse ansf asaa asab asae asaf asak asan asas asba asea asee asek asen ases asfa aska aske asks asne assa asse assk assn asss baaa baaf baak baan baas baba babb babe babs baek baes baff bak- baka bake baks bana bane bank bann bans basa base basf bask bass bbas bbbb bbbs bbeb bbfn beaf beak bean beas beba bebb bebe beeb beef beek been bees befa befe beff beka beke beks bena bene benk benn bens bes- besa bese besk bess bfas bffs bnas bnss bsaa bsas bsea bseb bsee bses bsfa bsff bsfs bsns bsse eaaf eaba eafb eana eans easa ease eban ebba ebbs eben ebes ebsa eeea eeee eees eefa eefe eefn eeka eeke eeks eena eens eese eesk efab efas efen efes effa effs efke efsa eka- ekab ekeb ekek eken ekes ekka ekne enab enan enas enb- enbn enea enee enes enfb enka enke enna enne enns ensa ense esab esan esas esba esbs esea esee esek esen eses esfs eska eske esks esna esne essa esse f--k faaa faan faas faba fabe fabs faeb faes fafa fafe faff fake fana fane fank fans fasa fase fasn fass feaf feak fean feas feba febs feeb feek feen fees fefe feff feke fena fene fenk fenn fens fesa fese fess ffee ffff ffsa ffss fkab fsas fssa fssf kaaa kaab kaaf kaak kaan kaas kaba kabb kabe kabf kaes kafa kafe kaff kafn kafs kaka kake kakk kakn kaks kana kanb kane kanf kann kans kas- kasa kasb kase kasf kask kasn kass kbaa kbab kbae kbak kbas kbba kbbb kbbe kbbf kbbk kbbs kbeb kbee kbef kbek kben kbes kbfb kbff kbfk kbfs kbkb kbkf kbkk kbna kbnn kbsa kbsb kbsk kbsn kbss kea- keak kean keas keba kebb kebe kebn keef keek keen kees kefa kefb keff kefs keka kekb keke keks ken- kena kene kenk kenn kens kesa kesb kesk kesn kess kfab kfan kfbk kfbn kfeb kffa kffb kfff kffk kffn kfka kfkb kfna kfnf kfnk kfnn kfns kfsa kfse kfsk kkaa kkan kkba kkbb kkbe kkbn kkbs kkea kken kkfn kkfs kkkk kknb kkne kknn kkns kksa kkse kksf kksn kkss knaa knab knaf knan knas knba knbb knbe knbn knea kneb knee knef knek knen knes knfa knkk knnb knnk knns knsa knsb knse knsk knsn knss ksab ksaf ksak ksan ksas ksba ksbn ksbs ksea ksee ksek ksen ksfa ksfb ksfe ksfn kska kskb kske kskf kskk kskn ksks ksna ksnb ksnf ksnk ksnn ksns kssa ksse kssn ksss naaa naab naan naas naba nabe nabf nabk nabs naea naef naes nafa nafe naff nafs naka nake naks nan- nana nanb nane nann nans nas- nasa nasb nase nasf nask nass nbaa nbaf nbak nbas nbfa neab neaf nean neas neba nebb nebe nebn nebs neea neeb neef neen nees nefa nefe neff nefs neka neke nena nene nens nesa nesb nese nesn ness nfaa nfas nfff nnes nnnn nnsa nnss nsaa nseb nsfk nsfs nskk nsna nssa nssb nsse nssf nsss saab saae saaf saak saan saas saba sabb sabe sabs saeb saek saen saes safa safb safe saff saka sakb sake sakk saks sana sane sank sann sans sasa sase sasf sask sass sbaa sbas sbbs sbef sbsa sbse se-e se-f se-k se-n se-s seaa seab seaf seak sean seas seba sebe sebs seea