-ase a-be aaaa aaab aaac aaae aaar aaas aaba aabb aabc aabt aaca aacb aacc aace aacr aacs aact aaea aaec aaes aara aarc aare aars aart aasa aasc aase aass aast aata aatc aatt abaa abab abac abae abar abas abat abax abb- abba abbb abbe abbr abbs abbt abca abcb abcc abcr abcs abct abec abee aber abes abet abra abrc abrs abs- absa abse abss abta abts ac-t acaa acab acac acae acar acas acat acba acca accc acce accs acct ace- acea acec acer aces acet acr- acra acrc acre acrr acrs acsa acsc acse acss acst acta actc acte acts actt aeac aeas aebs aecb aect aeer aer- aera aerc aers aesc aess aest aeta aetc aetr aett aetx arab arac arae arar aras arat arax arba arbe arbs arc- arca arce arcs arct area arec aree ares aret arex arr- arra arrc arre arrr arrs arrt ars- arsa arsc arse arst arta artc arte artr arts artx asaa asab asac asae asar asas asat asba asc- asca ascb ascc asce ascr asct ascx asea asec asee aser ases aset asra asrc asrs assa assc asse assr asss asst asta astb astc aste astr asts at-t at-x ataa atab atac atae atar atas atat atax atbs atca atcc atcr atcs atea atec atee ater ates atex atra atrc atre atrx atsb atsc atse atst atta atte attr atts axar axat axce axer axes axse ba-x baaa baar baas baat baba babb babe babr babs bac- baca bacc bace bacs bact baer baes bar- bara barb barc bare barr bars bart barx basa basc base bass bast bata batc bate bats batt baxt bbas bbbb bbbs bbeb bbet bbrc bcaa bcar bcas bcat bcbc bcbs bcca bccc bccs bcec bcer bces bcet bcra bcrs bcsa bcsc bcss bctc bcts bear beas beat beba bebb bebe beca becs beeb beer bees beet bera berc bere berr bers bert bes- besa bese bess best beta betc bete bets bett brab brac brae bras brat brax brca brcb brce brea breb brec bree brer bres bret brex brrr brrs brsb brsr brst brtc bsaa bsac bsas bsat bscs bsea bseb bsec bsee bser bses bset bsra bssc bsse bsts btaa btcc btcs btcx btec btex btrc btrt btss bttb caaa caab caac caas caat caba cabe cabs cac- caca cacc cace cacr caec caer caes caex cara carb carc care carr cars cart carx casa casb casc case casr cass cast cat- cata catb catc cate cats catt caxa cbac cbar cbat cbax cbbc cbbs cbca cbcc cbce cbcr cbcs cbct cbea cbec cbee cber cbet cbre cbrt cbsa cbsc cbse cbta cbtc cbxa ccaa ccab ccac ccar ccas ccat ccba ccbc ccca cccb cccc cccs ccee ccra ccrc ccre ccrs ccrt ccsa ccss ccst cctb cctc cctt ceac cear ceas ceat ceba cebs cec- ceca cece cecs cect ceeb ceec cees cer- cera cerc cere cers cert cesa cesc cese cesr cess cest cet- ceta cete cets cexe crab crac crar cras crat crax crbc crca crcc crce crcr cre- crea creb crec cree cres cret crex crrt crsa crss crst crtc crts csaa csab csac csar csas csat cscb cscc csce cscr cscs csea csec csee cser cset csra csrc csrs cssa csse cssr csta cstc cstr csts cstx csxt ctab ctae ctba ctbs ctca ctec ctrc ctrs ctsa ctsc ctss ctta ctts cxxx eaba eaca eacc eaec eara earb eare ears eart easa ease east eata eate eats ebac ebba ebbc ebbr ebbs ebcc eber ebes ebsa ecaa ecac ecar ecat ecbc ecbe ecca eccb eccc ecce ecct eces ecra ecrc ecrr ecsa ecsc ecse ecss ect- ecta ectc ects eeca eecs eeea eeee eees eera eerc eers eese eeta eetc eete eets eext er-x eras erat erba erbb erbe erca ercc erce ereb erec erer eres eret erra errc erre errs ersa erse erst erta erts esab esac esar esas esat esba esbs esca escb esce escr escs esea esee eser eses eset esra essa esse esst esta estc este estr ests etas etat etbc etbr etcc etcs etec etee eter etes etra etre etta ette exa- exec exer exes exrx exta exte extr exts raab raas raat raba rabb rabe rabs rac- raca racc race racs ract raec raer raes rara rarb rare rars rasa rasc rase rass rast rata rate rats ratt raxa rbbb rbbr rbbs rbss rbst rcac rcas rcbc rccb rccc rccs rcet rcsa rcsc rcss rctc rcts rea- reac reae rear reas reat reba rebb rebe rebs reca recc rece recr recs rect reeb rees reet rera rere rers rert resa rese ress rest reta rete retr rets rett rexx rras rrat rrrr rsaa rscc rscs rsee rsre rssa rsts rtas rtca rtcc rtce rtee rtes rtex rtss rtts rxes sa-c sa-x saab saac saae saar saas saat saba sabb sabc sabe sabr sabs saca sacc sace sacr sacs sact saeb saer saes saex sara sarc sare sarr sars sart sasa sasc sase sass sast sata satb satc sate satr sats satt saxa saxe saxt sbaa sbac sbar sbas sbbs sbca sbcc sbcs sbct sber sbsa sbse sbst sbtc scaa scab scac scar scas scat scba sccc scce sccs scct scea scec scee scer scet scr- scra scrc scre scrs scsa scsc scsr scst sctc sctr scts se-c se-e se-s se-t se-x seaa seab seac sear seas seat seax seba sebe sebs sebt sec- seca secc sece secr secs sect seea seeb seec seer sees seet seex sera serb serc sere serr sers sert sesa sesc sese sess sest set- seta setc sete sets sett setx sex- sexe sext sras srbc srcc srct sreb srec sres srta srtr ssaa ssab ssac ssas ssat ssbr ssca sscc ssce sscs ssec ssee sses sset ssex ssra ssrc ssrs sssa sssb sssc ssss ssta sstb sstc ssts stab stac stae star stas stat stax stbc stbs stca stcc stcs stea stec stee ster stes stet stex stra strc stre strs stss sttc sttr