-ase a-be a-ii aaaa aaab aaac aaae aaaf aaai aaar aaas aaba aabb aabc aabi aaca aacb aacc aace aacf aaci aacr aacs aaea aaec aaes aafa aafb aafc aaff aafi aaib aaic aaii aais aara aarc aare aari aars aasa aasc aase aasf aasi aass abaa abab abac abae abaf abai abar abas abb- abba abbb abbe abbi abbr abbs abca abcb abcc abcf abci abcr abcs abec abee aber abes abff abia abib abic abie abir abis abra abrc abri abrs abs- absa abse absf absi abss acaa acab acac acae acai acar acas acba acca accc acce accf acci accs ace- acea acec acer aces acfc acfe acfi acfs aci- acia acic acie acif acir acis acr- acra acrc acre acri acrr acrs acsa acsc acse acsi acss aeac aeaf aeas aebi aebs aecb aeci aeer aer- aera aerc aeri aers aesc aess afaa afar afbs afca afcb afcc afci afcs afee afer afes affa affc affi affs afia afib afif afir afis afr- afra afrc afre afri afrs afsa afsb afsc aiai aias aiba aica aicc aice aicf aicr aics aiea aiee aiff aifs aiia aiib aiic aiir aira aire airi airs aisa aisb aise aisi aisr arab arac arae araf arai arar aras arba arbe arbi arbs arc- arca arce arci arcs area arec aree aref arei ares arfa arfb arfc arff arfs aria arib arie arif arii aris arr- arra arrc arre arri arrr arrs ars- arsa arsc arse arsi asaa asab asac asae asaf asai asar asas asba asc- asca ascb ascc asce asci ascr asea asec asee aser ases asfa asfi asia asic asie asif asii asir asis asra asrc asrs assa assc asse assi assr asss ba-i baaa baaf baar baas baba babb babe babi babr babs bac- baca bacc bace baci bacs baer baes bafc baff baia baib baic baie bair bais bar- bara barb barc bare barf bari barr bars basa basc base basf basi bass bbas bbbb bbbs bbci bbeb bbfc bbrc bcaa bcar bcas bcbc bcbs bcca bccc bcci bccs bcec bcer bces bcfc bcia bcie bcis bcra bcrs bcsa bcsc bcss beaf bear beas beba bebb bebe bebi beca beci becs beeb beef beer bees befa befe beff beia beic beir beis bera berc bere beri berr bers bes- besa bese bess bfas bfca bfcs bffs bfsi bfsr biaf biar bias biba bibb bibe bibi bibs bica bicc bice bici bics bieb bief bier bies bifa biff bifi biis bira birb bire biri birr birs bis- bisa bisc bise biss brab brac brae braf brai bras brca brcb brce brea breb brec bree bref brei brer bres brfc bria bric brie bris brrr brrs brsb brsr bsaa bsac bsas bsci bscs bsea bseb bsec bsee bser bses bsfa bsfc bsff bsfs bsic bsra bssc bsse caaa caab caac caaf caas caba cabe cabf cabi cabs cac- caca cacc cace caci cacr caec caei caer caes cafa cafb cafc cafe caff cafs caia caib caic cair cais cara carb carc care carf cari carr cars casa casb casc case casi casr cass cbac cbar cbbc cbbs cbca cbcc cbce cbcr cbcs cbea cbec cbee cbef cber cbfb cbfc cbia cbir cbre cbsa cbsc cbse cbsi ccaa ccab ccac ccaf ccai ccar ccas ccba ccbc ccca cccb cccc cccf ccci cccs ccee ccfa ccfc ccff ccfi ccic ccii ccir ccis ccra ccrc ccre ccrf ccri ccrs ccsa ccsf ccsi ccss ceac cear ceas ceba cebs cec- ceca cece ceci cecs ceeb ceec cees cef- cefa cefc cer- cera cerc cere cerf ceri cers cesa cesc cese cesi cesr cess cfaa cfab cfac cfae cfar cfbc cfbr cfbs cfca cfcb cfcf cfcs cffb cffr cfia cfra cfrb cfre cfsa cfse cfsi ciaa ciar cias ciba cibc cibe cibi cica cicc cici cicr cics ciee cier cies cifa cife ciff cifs ciia ciii ciis cira cirb circ cire ciri cirr cirs cis- cisa cisc cise cisr ciss crab crac craf crai crar cras crbc crca crcc crce crcr cre- crea creb crec cree crei cres crfc crfs cria crib cric crie crif cris crsa crss csaa csab csac csar csas csbf cscb cscc csce cscf csci cscr cscs csea csec csee cser csfc csfr csia csib csir csis csra csrc csrs cssa csse cssr eaaf eaba eaca eacc eaec eafb eaif eara earb eare ears easa ease easi ebac ebba ebbc ebbr ebbs ebcc eber ebes ebfc ebic ebis ebsa ecaa ecac ecai ecar ecbc ecbe ecca eccb eccc ecce ecci ecef eces ecfa ecfc ecfr ecfs ecib ecis ecra ecrc ecrf ecri ecrr ecsa ecsc ecse ecss eeca eecs eeea eeee eees eefa eefe eera eerc eers eese eesi efab efas efbr efca efes effa effi effs efic efsa efsi eica eics eiec eiei eier eies eifs eira eire eirs eisa eise eiss eraf eras erba erbb erbe erca ercc erce ereb erec erei erer eres erfc erfs eria eric erie eris erra errc erre errs ersa erse ersi esab esac esai esar esas esba esbs esca escb esce esci escr escs esea esee eser eses esfs esie esis esra esri essa esse essi faaa faac faas faba fabe fabi fabs faca facc face facs faeb faes fafa fafc fafe faff fafi faie fair fais fara farb farc fare farr fars fasa fasc fase fasi fass fbar fbis fbrs fcab fcar fcas fcba fcbs fcca fccf fces fcic fcii fcra fcsc feaf fear feas feba febs fece feeb feer fees fefc fefe feff fefi feia feie feir feis fera ferb ferc fere ferr fers fesa fese fess ffar ffcc ffee ffff ffii ffrr ffsa ffss fiaa fiac fiaf fiar fias fiba fibe fibs fica ficc fice fics fiec fief fier fies fifa fifc fife fiff fifi fiii fira fire firs fisa fisc fise fisi fiss frab frac frae fras frbc frcc frea free frei fres frfc fria frib fric frie fris frsb frsc fsai fsas fscb fscc fsec fsfi fsia fsra fssa fssc fssf i-be iaaa iaac iaai iaas