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 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 aiui arab arac arae arai arar arau arba arbe arbi arc- arca arce arci area arec aree arei areu 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 ba-i baaa baar baba babb babe babi babr babu bac- baca bacc bace baci baer baia baib baic baie bair bar- bara barb barc bare bari barr baru bau- baur 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 biar biba bibb bibe bibi bica bicc bice bici bieb bier bieu bira birb bire biri birr biru brab brac brae brai brau brca brcb brce brea breb brec bree brei brer bria bric brie brrr bruc brue buar buba bubb bube bubi bubu buca bucc buce buci bucu buea buer bueu buic buie buir buiu bur- bura burb bure buri burr buru caaa caab caac caba cabe cabi cabu cac- caca cacc cace caci cacr caec caei caer caeu caia caib caic cair caiu cara carb carc care cari carr cauc cbac cbar cbbc cbca cbcc cbce cbcr cbcu cbea cbec cbee cber cbia cbir cbre ccaa ccab ccac ccai ccar ccba ccbc ccca cccb cccc ccci cccu ccee ccic ccii ccir ccra ccrc ccre ccri ccuc ceac cear ceba cebu cec- ceca cece ceci ceeb ceec cer- cera cerc cere ceri ceui ciaa ciar ciau ciba cibc cibe cibi cica cicc cici cicr cicu ciee cier ciia ciii cira cirb circ cire ciri cirr ciuc crab crac crai crar crau crbc crbu crca crcc crce crcr cre- crea creb crec cree crei creu cria crib cric crie criu crub crue cuau cub- cuba cubb cube cubi cuca cucc cuce cuci cuer cui- cuir cura curb cure curi curr eaba eaca eacc eaec eaiu eara earb eare ebac ebba ebbc ebbr ebcc eber ebic 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 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 i-be iaaa iaac iaai iaba iaca iacc iacr iacu iaea iaec iaia iara iarc iare iaru ibac ibar ibca ibea ibec ibia ibie ibra ibrc ibri icaa icab icac icai icar icbc icca iccb iccc icci iccr iccu icea icec icee icer 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 iree irer iri- iria iric irie irra irrc irre irri iucc iuce iuiu iura raab raba rabb rabe rabi rabu rac- raca racc race raci racu raec raer raia raic raie raii rair raiu rara rarb rare rari raua raub rauc raue 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 riaa riab riai riau rib- riba ribe ribu rica ricc rice rier rieu riia rire riri riue 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 uria urib uric urie uriu urra urre urri urur uuri uuuu