aaba aabb aabc aabt aaca aacb aacc aace aack aacr aacs aact aacu aaea aaec aaes aaka aake aaku aara aarc aare aars aart aaru aasa aasc aase aass aast aasu aata aatc aatk aatt aaus abaa abab abac abae abak abar abas abat abau 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 absu abta abts abtu abua abue abuk abus abut ac-t acaa acab acac acae acar acas acat acba acca accc acce accs acct accu ace- acea acec acek acer aces acet acke acks acr- acra acrc acre acrr acrs acsa acsc acse acss acst acta actc acte acts actt actu acu- acue acur acus acut aeac aeas aebs aecb aect aeer aeka aer- aera aerc aers aesc aess aest aeta aetc aetr aett aetx akaa akae akar akas akca akee aker akes akeu akka akku akqa akr- akra akre aksa akst aksu akte akua aqar aqas aqra aqsa aqse aqu- aqua aque arab arac arae arak araq arar aras arat arau arax arba arbe arbs arc- arca arce arcs arct area arec aree arek ares aret areu arex arka arke arks arq- arqa arr- arra arrc arre arrk arrr arrs arrt arru ars- arsa arsc arse arsk arst arsu arta artc arte artr arts artx arua arub arue aruq arut asaa asab asac asae asak asar asas asat asau asba asbu asc- asca ascb ascc asce ascq ascr asct ascx asea asec asee asek aser ases aset aska aske askr asks askt asqc asra asrc asrs asru assa assc asse assk assq assr asss asst assu asta astb astc aste astr asts asub asue asur asus at-t at-x ataa atab atac atae atak ataq atar atas atat atax atbs atca atcc atck atcr atcs atea atec atee ater ates atex atka atkt atra atrc atre atrk atru atrx atsb atsc atse atst atta atte attr atts attu atua atub atuc atuk atur atus auaa aube auca auce auct auer auke auks aur- aura aure ausa ause aust ausu aut- aute auts auxa axar axat axce axer axes axse ba-x baaa baak baar baas baat baba babb babe babr babs babu bac- baca bacc bace back bacs bact baek baer baes bak- baka bake bakr baks bakt baku baqa baqt bar- bara barb barc bare bark barq barr bars bart baru barx basa basc base bask bass bast basu bata batc bate bats batt batu bau- bauk baur baux baxt bbas bbau bbbb bbbq bbbs bbeb bbet bbqs bbrc bcaa bcar bcas bcat bcbc bcbs bcca bccc bccs bcec bcer bces bcet bcra bcrs bcru bcsa bcsc bcss bctc bcts bcuc beak bear beas beat beau beba bebb bebe beca beck becs becu beeb beek beer bees beet beka beke beks beqa bera berc bere berk berr bers bert beru bes- besa bese besk bess best beta betc bete bets bett betu beuk beur beux bque brab brac brae brak bras brat brau brax brca brcb brce brea breb brec bree brek brer bres bret brex brka brkb brrr brrs brsb brsr brst brtc bruc brue brus brut brux bsaa bsac bsas bsat bscs bsea bseb bsec bsee bser bses bset bskt bsra bssc bsse bsts btaa btcc btcs btcx btec btek btex btqk btrc btrt btss bttb btus buar buat buba bubb bube bubq bubs bubu buca bucc buce buck bucs bucu buea buer bueu buka buke bukk buku buqa bur- bura burb bure burk burr burs burt buru busa busc buse busk buss bust busu busx but- buta bute buts butt buus buxa caaa caab caac caas caat caba cabe cabs cabu cac- caca cacc cace cack cacr caec caer caes caeu caex caka cake cara carb carc care cark carr cars cart carx casa casb casc case cask casr cass cast casu cat- cata catb catc cate cats catt catu cauc cauk caus caut caux caxa cbac cbar cbat cbax cbbc cbbs cbca cbcc cbce cbcr cbcs cbct cbcu cbea cbec cbee cber cbet cbka cbkr cbre cbrt cbsa cbsc cbse cbta cbtc cbus cbux cbxa ccaa ccab ccac ccar ccas ccat ccba ccbc ccca cccb cccc cccs cccu ccee ccra ccrc ccre ccrs ccrt ccsa ccss ccst cctb cctc cctt ccuc ccus ccut ceac cear ceas ceat ceba cebs cebu cec- ceca cece cecs cect ceeb ceec cees ceke ceqa cer- cera cerc cere cers cert cesa cesc cese cesr cess cest cet- ceta cete cets ceux cexe ckac ckat ckbc ckbe ckbx ckck ckcs ckcx cker ckrc cksa cksb ckst cktb ckts crab crac crar cras crat crau crax crbc crbu crca crcc crce crcr cre- crea creb crec cree cres cret creu crex crkc crrt crsa crss crst crtc crts crub crue cruk crus crut crux csaa csab csac csak csar csas csat cscb cscc csce cscr cscs csea csec csee cser cset cska csks csra csrc csrs cssa csse cssr csta cstc cstr csts cstx csua csur csus csxt ctab ctae ctba ctbs ctca ctec ctrc ctrs ctsa ctsc ctss ctsu ctta ctts cuau cub- cuba cubb cube cubs cuca cucc cuce cuck cucq cuek cuer cues cuk- cuka cuke cura curb cure curr curs curt cusa cusb cusk cuss cust cusu cut- cuta cutc cute cuts cutt cxxx eaba eaca eacc eaec eara earb eare ears eart easa ease east eata eate eats eaus eaux ebac ebba ebbc ebbr ebbs ebcc eber ebes ebru ebsa ebur ebus ecaa ecac ecar ecat ecbc ecbe ecca eccb eccc ecce ecct eces ecka ecks ecra ecrc ecrr ecru ecsa ecsc ecse ecss ecsu ect- ecta ectc ects ecua ecus eeca eecs eeea eeee eees eeka eeke eeks eera eerc eers eese eesk eeta eetc eete eets eetu eext eka- ekab ekeb ekek eker ekes eket ekka ekta ekur equ- equa eque equs er-x eras erat erau erba erbb erbe erca ercc erce ereb erec erer eres eret erke erks erra errc erre errs ersa erse