-ase a-be aaaa aaab aaac aaae aaas aaba aabb aabc aabt aaca aacb aacc aace aacs aact aaea aaec aaes aasa aasc aase aass aast aata aatc aatt abaa abab abac abae abas abat abb- abba abbb abbe abbs abbt abca abcb abcc abcs abct abec abee abes abet abs- absa abse abss abta abts ac-t acaa acab acac acae acas acat acba acca accc acce accs acct ace- acea acec aces acet acsa acsc acse acss acst acta actc acte acts actt aeac aeas aebs aecb aect aesc aess aest aeta aetc aett asaa asab asac asae asas asat asba asc- asca ascb ascc asce asct asea asec asee ases aset assa assc asse asss asst asta astb astc aste asts at-t ataa atab atac atae atas atat atbs atca atcc atcs atea atec atee ates atsb atsc atse atst atta atte atts baaa baas baat baba babb babe babs bac- baca bacc bace bacs bact baes basa basc base bass bast bata batc bate bats batt bbas bbbb bbbs bbeb bbet bcaa bcas bcat bcbc bcbs bcca bccc bccs bcec bces bcet bcsa bcsc bcss bctc bcts beas beat beba bebb bebe beca becs beeb bees beet bes- besa bese bess best beta betc bete bets bett bsaa bsac bsas bsat bscs bsea bseb bsec bsee bses bset bssc bsse bsts btaa btcc btcs btec btss bttb caaa caab caac caas caat caba cabe cabs cac- caca cacc cace caec caes casa casb casc case cass cast cat- cata catb catc cate cats catt cbac cbat cbbc cbbs cbca cbcc cbce cbcs cbct cbea cbec cbee cbet cbsa cbsc cbse cbta cbtc ccaa ccab ccac ccas ccat ccba ccbc ccca cccb cccc cccs ccee ccsa ccss ccst cctb cctc cctt ceac ceas ceat ceba cebs cec- ceca cece cecs cect ceeb ceec cees cesa cesc cese cess cest cet- ceta cete cets csaa csab csac csas csat cscb cscc csce cscs csea csec csee cset cssa csse csta cstc csts ctab ctae ctba ctbs ctca ctec ctsa ctsc ctss ctta ctts eaba eaca eacc eaec easa ease east eata eate eats ebac ebba ebbc ebbs ebcc ebes ebsa ecaa ecac ecat ecbc ecbe ecca eccb eccc ecce ecct eces ecsa ecsc ecse ecss ect- ecta ectc ects eeca eecs eeea eeee eees eese eeta eetc eete eets esab esac esas esat esba esbs esca escb esce escs esea esee eses eset essa esse esst esta estc este ests etas etat etbc etcc etcs etec etee etes etta ette sa-c saab saac saae saas saat saba sabb sabc sabe sabs saca sacc sace sacs sact saeb saes sasa sasc sase sass sast sata satb satc sate sats satt sbaa sbac sbas sbbs sbca sbcc sbcs sbct sbsa sbse sbst sbtc scaa scab scac scas scat scba sccc scce sccs scct scea scec scee scet scsa scsc scst sctc scts se-c se-e se-s se-t seaa seab seac seas seat seba sebe sebs sebt sec- seca secc sece secs sect seea seeb seec sees seet sesa sesc sese sess sest set- seta setc sete sets sett ssaa ssab ssac ssas ssat ssca sscc ssce sscs ssec ssee sses sset sssa sssb sssc ssss ssta sstb sstc ssts stab stac stae stas stat stbc stbs stca stcc stcs stea stec stee stes stet stss sttc taa- taas taat taba tabb tabc tabe tabs taca tacc tace tacs tact taec taes tasa tasb tasc tase tass tast tata tatb tate tats tatt tbas tbbs tbca tbcb tbcc tbce tbst tbta tcbs tcca tccc tctc tcts teac teas teat teba teca tecs tect teec tees teet tesa tesc tese tess test teta tete tets tett tsaa tsat tsbc tsca tscc tsec tses tset tssa tsse tsst tstc tsts ttab ttbb ttss tttt