-ana -ane -ase -ene a-be aaaa aaab aaac aaae aaan aaas aaba aabb aabc aaca aacb aacc aace aacn aacs aaea aaec aaen aaes aana aane aasa aasc aase aass abaa abab abac abae aban abas abb- abba abbb abbe abbs abca abcb abcc abcn abcs abec abee aben abes abs- absa abse abss acaa acab acac acae acan acas acba acca accc acce accs ace- acea acec acen aces acne acsa acsc acse acss aeac aean aeas aebn aebs aecb aena aesc aess ana- anaa anab anac anae anan anas anba anbb anca ancc ance anec anee anen anes anna annb anne anns ansa anse asaa asab asac asae asan asas asba asc- asca ascb ascc asce asea asec asee asen ases asnc asne assa assc asse assn asss baaa baan baas baba babb babe babs bac- baca bacc bace bacn bacs baes bana banc bane bann bans basa basc base bass bbas bbbb bbbs bbeb bcaa bcas bcbc bcbs bcca bccc bccs bcec bces bcsa bcsc bcsn bcss bean beas beba bebb bebe beca becs beeb been bees bena bene benn bens bes- besa bese bess bnas bnss bsaa bsac bsas bscs bsea bseb bsec bsee bses bsns bssc bsse caaa caab caac caan caas caba cabe cabs cac- caca cacc cace caec caen caes cana canc cane cann cans casa casb casc case cass cbac cbbc cbbs cbca cbcc cbce cbcn cbcs cbea cbec cbee cbna cbsa cbsc cbse cbsn ccaa ccab ccac ccas ccba ccbc ccbn ccca cccb cccc cccs ccee ccna ccnb ccnc ccne ccns ccsa ccsn ccss ceac cean ceas ceba cebs cec- ceca cece cecs ceeb ceec cees cen- cena cene cens cesa cesc cese cess cnaa cnac cnas cnbc cnes cnna cnsa cnss csaa csab csac csas cscb cscc csce cscs csea csec csee csne cssa csse eaba eaca eacc eaec eana eans easa ease ebac eban ebba ebbc ebbs ebcc eben ebes ebsa ecaa ecac ecan ecbc ecbe ecca eccb eccc ecce eces ecne ecsa ecsc ecse ecss eeca eecs eeea eeee eees eena eens eese enab enac enan enas enb- enbn enca ence encs enea enee enes enna ennc enne enns ensa ense esab esac esan esas esba esbs esca escb esce escs esea esee esen eses esna esne essa esse naaa naab naac naan naas naba nabc nabe nabs naca nacc nace nacs naea naes nan- nana nanb nane nann nans nas- nasa nasb nasc nase nass nbaa nbas nbbc nbca nbcc nbcs ncaa ncac ncba ncbc ncbs ncca nccc nccn nccs ncea ncec ncee ncen nces ncna ncnc ncsa ncsc ncse ncss neab neac nean neas neba nebb nebe nebn nebs neca necc nece necs neea neeb neen nees nena nene nens nesa nesb nesc nese nesn ness nnes nnnn nnsa nnss nsaa nsac nsca nscc nscs nseb nsec nsna nssa nssb nssc nsse nsss sa-c saab saac saae saan saas saba sabb sabc sabe sabs saca sacc sace sacn sacs saeb saen saes sana sane sann sans sasa sasc sase sass sbaa sbac sbas sbbs sbca sbcc sbcs sbsa sbse scaa scab scac scan scas scba sccc scce sccs scea scec scee scna scsa scsc scsn se-c se-e se-n se-s seaa seab seac sean seas seba sebe sebs sec- seca secc sece secn secs seea seeb seec seen sees sena sene senn sens sesa sesc sese sess snab snas snba snca sncc sneb snee snes snns ssaa ssab ssac ssan ssas ssbn ssca sscc ssce sscs ssec ssee sses ssns sssa sssb sssc ssss