a-ii aaaa aaab aaac aaai aaar aaba aabb aabc aabi aabt aaca aacb aacc aaci aacr aact aacu aaib aaic aaii aara aarc aari aart aaru aata aatc aatt abaa abab abac abai abar abat abau abb- abba abbb abbi abbr abbt abca abcb abcc abci abcr abct abia abib abic abir abit abiu abra abrc abri abta abtu abua abut ac-t acaa acab acac acai acar acat acba acca accc acci acct accu aci- acia acic acir acr- acra acrc acri acrr acta actc acti actt actu acu- acur acut aiai aiba aica aicc aicr aiia aiib aiic aiir aira airi airt aita aiti aitr aitt aitu aiui arab arac arai arar arat arau arba arbi arc- arca arci arct aria arib arii arit arr- arra arrc arri arrr arrt arru arta artc arti artr arua arub arui arut at-t ataa atab atac atai atar atat atca atcc atcr atia atic atit atiu atra atrc atri atru atta atti attr attu atua atub atuc atur auaa auca auci auct aur- aura auri aut- ba-i baaa baar baat baba babb babi babr babu bac- baca bacc baci bact baia baib baic bair bait bar- bara barb barc bari barr bart baru bata batc bati batt batu bau- baur bbau bbbb bbci bbrc bcaa bcar bcat bcbc bcca bccc bcci bcia bcit bcra bcru bctc bcuc biar biat biba bibb bibi bica bicc bici bira birb biri birr birt biru bita bitc bitt bitu brab brac brai brat brau brca brcb bria bric brit brrr brtc bruc brut btaa btcc btrc btrt bttb buar buat buba bubb bubi bubu buca bucc buci bucu buic buir buit buiu bur- bura burb buri burr burt buru but- buta buti butt caaa caab caac caat caba cabi cabu cac- caca cacc caci cacr caia caib caic cair cait caiu cara carb carc cari carr cart cat- cata catb catc cati catt catu cauc caut cbac cbar cbat cbbc cbca cbcc cbcr cbct cbcu cbia cbir cbit cbrt cbta cbtc ccaa ccab ccac ccai ccar ccat ccba ccbc ccca cccb cccc ccci cccu ccic ccii ccir ccra ccrc ccri ccrt cctb cctc cctt ccuc ccut ciaa ciar ciat ciau ciba cibc cibi cica cicc cici cicr cict cicu ciia ciii ciit cira cirb circ ciri cirr cirt cita citb citi citt citu ciuc crab crac crai crar crat crau crbc crbu crca crcc crcr cria crib cric crit criu crrt crtc crub crut ctab ctba ctbi ctca ctia ctic ctrc ctta cuau cub- cuba cubb cubi cuca cucc cuci cui- cuir cuit cura curb curi curr curt cut- cuta cutc cutt iaaa iaac iaai iaat iaba iaca iacc iacr iact iacu iaia iara iarc iart iaru iata iatc iati ibac ibar ibat ibca ibia ibra ibrc ibri ibtb ibtc icaa icab icac icai icar icat icbc icca iccb iccc icci iccr icct iccu icra icrc icrr icrt icru icta icub iiac iica iiii iiit iira iirc iita iitr iitt iiuc irac irai irar irca ircc ircu iri- iria iric irra irrc irri irta irti itaa itac itai itar itat itia itic itra itri itta itur iucc iuiu iura raab raat raba rabb rabi rabu rac- raca racc raci ract racu raia raic raii rair rait raiu rara rarb rari rata rati ratt ratu raua raub rauc raut rbbb rbbr rcac rcbc rccb rccc rcic rctc rcti riaa riab riai riat riau rib- riba ribu rica ricc rict riia riri rita riti ritt ritu rrat rrrr rtai rtca rtcc ruba rubb rubi rubu ruca ruci ruct ruit rura rurc ruri ruru ruta ruti rutt rutu taa- taar taat taba tabb tabc tabi tabu taca tacc taci tact taia tair tait tara tarb tarc tari tarr tart taru tata tatb tati tatr tatt tatu taua taub tauc taur taut tbar tbca tbcb tbcc tbit tbrb tbta tcca tccc tccu tctc tiaa tiab tiar tiba tibi tibu tica ticc tiit tiiu tira tirb tiri tirr tiru tita titc titi titt titu traa trab trac trai trat trau trca trcc tri- tria trib tric trit trra trtc trtr trub truc trut truu ttab ttbb tttt tuar tuat tuba tubb tubr tubu tuca tucc tuit tuiu tura turb turc turi turr turt turu tuta tuti tutt tutu uabc uaca uair uarc uart uaru uata uatu uaua ubac ubar ubba ubbi ubic ubii ubir ubit ubra ucai ucar ucat ucbc ucca ucci ucrc ucua ucut uica uira uirr urac urai urat urau urba urbi urca urci uria urib uric uriu urra urri urur urut utac utai utau utia utri utti uttu uuri uuta uuuu