a-ii aaaa aaab aaac aaad aaai aaar aaas aaba aabb aabc aabd aabi aaca aacb aacc aacd aaci aacr aacs aacu aada aadc aadi aads aadu aaib aaic aaii aais aara aarc aard aari aars aaru aasa aasc aasd aasi aass aasu aaus abaa abab abac abad abai abar abas abau abb- abba abbb abbi abbr abbs abca abcb abcc abcd abci abcr abcs abda abdi abdu abia abib abic abid abir abis abiu abra abrc abri abrs abs- absa absd absi abss absu abua abud abus acaa acab acac acad acai acar acas acba acca accc accd acci accs accu acda acdb acdc acdi acds aci- acia acic acid acir acis acr- acra acrc acri acrr acrs acsa acsc acsd acsi acss acu- acur acus adaa adab adac adad adai adar adas adba adbc adbi adcc adci adcs adda addc addd addi addr adds addu adia adib adic adir adis adra adrs adsa adsi adsr adss adua adub adur aiai aias aiba aica aicc aicd aicr aics aida aidb aidc aidi aidr aids aidu aiia aiib aiic aiid aiir aira aird airi airs aisa aisb aisd aisi aisr aiud aiui arab arac arad arai arar aras arau arba arbi arbs arc- arca arci arcs arda ardc ardi ards ardu aria arib arid arii aris arr- arra arrc arri arrr arrs arru ars- arsa arsc arsd arsi arsu arua arub arud arui asaa asab asac asad asai asar asas asau asba asbu asc- asca ascb ascc asci ascr asda asds asia asic asii asir asis asra asrc asrs asru assa assc assd assi assr asss assu asub asud asui asur asus auaa auca auci audc audi auis aur- aura aurd auri ausa ausd ausu ba-i baaa baad baar baas baba babb babi babr babs babu bac- baca bacc baci bacs bada badb badd badi badr bads badu baia baib baic baid bair bais bar- bara barb barc bard bari barr bars baru basa basc basi bass basu bau- baud baur bbad bbas bbau bbbb bbbs bbci bbdd bbrc bcaa bcar bcas bcbc bcbs bcca bccc bcci bccs bcda bcds bcia bcis bcra bcrs bcru bcsa bcsc bcss bcuc bd-r bdbc bddc bdii bdsd biad biar bias biba bibb bibi bibs bica bicc bici bics bida bidi bidr bids bidu biis bira birb bird biri birr birs biru bis- bisa bisc bisd biss bisu brab brac brad brai bras brau brca brcb brda brds bria bric brid bris brrr brrs brsb brsr bruc brud brus bsaa bsac bsas bsbd bsci bscs bsic bsra bsrd bssc bssd buad buar buba bubb bubi bubs bubu buca bucc buci bucs bucu buda budb budd budi buds budu buic buid buir buis buiu bur- bura burb burd buri burr burs buru busa busc busi buss busu buus c-cd caaa caab caac caas caba cabi cabs cabu cac- caca cacc caci cacr cada cadc cadd cadi cadr cads cadu caia caib caic caid cair cais caiu cara carb carc card cari carr cars casa casb casc casd casi casr cass casu cauc caus cbac cbar cbbc cbbs cbca cbcc cbcr cbcs cbcu cbdb cbdc cbdi cbds cbia cbid cbir cbrd cbsa cbsc cbsi cbus ccaa ccab ccac ccad ccai ccar ccas ccba ccbc ccca cccb cccc ccci cccs cccu ccdc ccdi ccdr ccds ccic ccid ccii ccir ccis ccra ccrc ccri ccrs ccsa ccsd ccsi ccss ccuc ccus cd-r cdaa cdac cdad cdai cdba cdcs cdda cddb cddr cdic cdii cdis cdrs cdss ciaa ciar cias ciau ciba cibc cibi cica cicc cici cicr cics cicu cida cidc cidi cidr cids ciia ciid ciii ciis cira cirb circ ciri cirr cirs cis- cisa cisc cisd cisr ciss ciuc cius crab crac crai crar cras crau crbc crbu crca crcc crcr crda crdc cria crib cric cris criu crsa crss crub crud crus csaa csab csac csar csas cscb cscc cscd csci cscr cscs csda csdb csdr csia csib csid csir csis csra csrc csrd csrs cssa cssd cssr csua csur csus cuau cub- cuba cubb cubi cubs cuca cucc cuci cuda cudi cuds cui- cuir cuis cura curb curd curi curr curs cusa cusb cusd cuss cusu daab daad daar daas daau daba dabb dabs dabu daca daci dacs dada dadi dads dadu daia daid dair dais dara darb darc dard dari darr dars daru dasa dasb dasc dasd dasi dass daub daud daur daus dbar dbas dbcc dbcs dbrs dbsa dbss dbus dcas dcbc dcca dccb dccc dcci dccs dccu dcdb dcds dcia dcii dcis dcra dcsc dcss dddd ddrc ddss ddub dia- diab diac diad diar dias diba dibb dibs dica dici dida didi dids didu diii diis dira dird dirr dirs dis- disa disc disd disi diss dius draa drab drac drad drar dras drau drba drbc drca drda drib dric drra drrs drsa drua drub drui drus druu dsac dsba dsbc dscc dscr dscs dsda dsdr dsrc dsri dsrr dssa dssc dssi duaa duab duad duar duas dub- duba dubb dubc dubs dubu duca ducs duda dudd duds dudu duid duir duis dura duri duru dusa dusi duur iaaa iaac iaai iaas iaba iaca iacc iacr iacs iacu iadb iadc iaia iais iara iarc iars iaru iasa iasc iasi iasr ibac ibad ibar ibas ibca ibcs ibia ibid ibis ibra ibrc ibrd ibri ibsa ibss ibus icaa icab icac icad icai icar icas icbc icbd icbs icca iccb iccc icci iccr iccs iccu icdc icdd icis icra icrc icrr icrs icru icsa icsb icsc icsd icsi icsr icss icub icus idad idar idas idca idcr idda idia idic idid idir idis idra idrc idsa idsc idss idub idus iiac iias iica iicd iida iiii iiis iira iirc iirs iisc iisd iisi iisr iisu iiuc irac irad irai irar iras irca ircc ircd ircs ircu irda irdc irds iri- iria iric irid iris irra irrc irri irrs irsa irus is-a isac isad isai isar isas isba isbd isca iscc iscd isci iscr iscs iscu isda isdb isdc isds isia isic isis isra isri