a-be a-ii aaaa aaab aaac aaae aaai aaar aaba aabb aabc aabi aaca aacb aacc aace aaci aacr aacu aaea aaec aaib aaic aaii aara aarc aare aari aaru abaa abab abac abae abai abar abau abax abb- abba abbb abbe abbi abbr abca abcb abcc abci abcr abec abee aber abia abib abic abie abir abiu abra abrc abri abua abue acaa acab acac acae acai acar acba acca accc acce acci accu ace- acea acec acer aci- acia acic acie acir acr- acra acrc acre acri acrr acu- acue acur aeac aebi aecb aeci aeer aer- aera aerc aeri aiai aiba aica aicc aice aicr aiea aiee aiia aiib aiic aiir aira aire airi airx aiui aixa aixi arab arac arae arai arar arau arax arba arbe arbi arc- arca arce arci area arec aree arei areu arex aria arib arie arii arr- arra arrc arre arri arrr arru arua arub arue arui auaa aube auca auce auci auer aur- aura aure auri auxa axar axce axer axi- axia axie ba-i ba-x baaa baar baba babb babe babi babr babu bac- baca bacc bace baci baer baia baib baic baie bair baix bar- bara barb barc bare bari barr baru barx bau- baur baux baxi bbau bbbb bbci bbeb bbrc bcaa bcar bcbc bcca bccc bcci bcec bcer bcia bcie bcra bcru bcuc bear beau beba bebb bebe bebi beca beci becu beeb beer beia beic beir bera berc bere beri berr beru beur beux biar biba bibb bibe bibi bica bicc bice bici bieb bier bieu bira birb bire biri birr biru birx bixa bixi brab brac brae brai brau brax brca brcb brce brea breb brec bree brei brer brex bria bric brie brix brrr bruc brue brux buar buba bubb bube bubi bubu buca bucc buce buci bucu buea buer bueu buic buie buir buiu buix bur- bura burb bure buri burr buru buxa caaa caab caac caba cabe cabi cabu cac- caca cacc cace caci cacr caec caei caer caeu caex caia caib caic cair caiu caix cara carb carc care cari carr carx cauc caux caxa cbac cbar cbax cbbc cbca cbcc cbce cbcr cbcu cbea cbec cbee cber cbia cbir cbre cbux cbxa ccaa ccab ccac ccai ccar ccba ccbc ccca cccb cccc ccci cccu ccee ccic ccii ccir ccix ccra ccrc ccre ccri ccuc ccxi ceac cear ceba cebu cec- ceca cece ceci ceeb ceec cer- cera cerc cere ceri ceui ceux cexe ciaa ciar ciau ciba cibc cibe cibi cica cicc cici cicr cicu ciee cier ciia ciii cira cirb circ cire ciri cirr ciuc cixi crab crac crai crar crau crax crbc crbu crca crcc crce crcr cre- crea creb crec cree crei creu crex cria crib cric crie criu crub crue crux cuau cub- cuba cubb cube cubi cuca cucc cuce cuci cuer cui- cuir cura curb cure curi curr cxii cxix cxxi cxxx eaba eaca eacc eaec eaiu eara earb eare eaux ebac ebba ebbc ebbr ebcc eber ebic ebix ebru ebur ecaa ecac ecai ecar ecbc ecbe ecca eccb eccc ecce ecci ecib ecra ecrc ecri ecrr ecru ecua eeca eeea eeee eera eerc eica eiec eiei eier eira eire er-x erau erba erbb erbe erca ercc erce ereb erec erei erer eria eric erie eriu erra errc erre erua erub eruc erur euba eubc eubi euer eur- eura eurc eure exa- exai exec exer exrx i-be iaaa iaac iaai iaba iaca iacc iacr iacu iaea iaec iaia iara iarc iare iaru ibac ibar ibca ibea ibec ibex ibia ibie ibra ibrc ibri icaa icab icac icai icar icbc icca iccb iccc icci iccr iccu icea icec icee icer icex icra icrc icre icrr icru icub icue ieac iecc ieie iera iere ieri iiac iica iiie iiii iira iirc iiuc irac irae irai irar irbe irca ircc ircu ircx iree irer irex iri- iria iric irie irix irra irrc irre irri iucc iuce iuiu iura ixia ixxi raab raba rabb rabe rabi rabu rac- raca racc race raci racu raec raer raia raic raie raii rair raiu raix rara rarb rare rari raua raub rauc raue raxa raxi rbbb rbbr rcac rcbc rccb rccc rcic rea- reac reae rear reau reba rebb rebe rebu reca recc rece reci recr recu reeb reia reii reir reiu rera rere reri reru reue reuu reux rexx riaa riab riai riau rib- riba ribe ribu rica ricc rice rier rieu riex riia rire riri riue rixc rixe rrrr ruba rubb rube rubi rubu ruca ruce ruci ruer rura rurc rure ruri ruru u-ie uabc uaca uair uarc uaru uaua ubac ubar ubba ubbe ubbi uber ubic ubii ubir ubra ucai ucar ucbc ucca ucci ucea ucrc ucua ueba ueir uica uira uirr urac urai urau urba urbe urbi urca urci ure- urea urex uria urib uric urie uriu urix urra urre urri urur uuri uuuu uxia uxue xaar xace xara xare xaui xbai xbar xbee xbra xcii xcri xeer xer- xera xexe xibe xibu xica xiii xixi xura xuri xuxa xuxu xxii xxix xxxi xxxx