-er a-a a-c a-t aaa aac aae aaf aar aas aat aax ac- aca acc ace acf acr acs act acx aea aec aee aef aer aes aet aex af- afa afc afe aff afr afs aft afx ar- ara arc are arf arr ars art arx as- asa asc ase asf asr ass ast asx at- ata atc ate atf atr ats att atx ax- axa axe axr axs axt axx c-- caa cac cae caf car cas cat cax cca ccc cce ccf ccr ccs cct ccx ce- cea cec cee cef cer ces cet cex cfa cfc cfe cff cfr cfs cft cfx cra crc cre crf crr crs crt crx csa csc cse csf csr css cst csx cta ctc cte ctf ctr cts ctt ctx cxc cxf cxr cxs cxt cxx eaa eac eae eaf ear eas eat eax ec- eca ecc ece ecf ecr ecs ect ecx eea eec eee eef eer ees eet eex ef- efa efc efe eff efr efs eft efx era erc ere erf err ers ert es- esa esc ese esf esr ess est esx eta etc ete etf etr ets ett etx ex- exa exc exe exr exs ext exx faa fac fae faf far fas fat fax fca fcc fce fcf fcr fcs fct fcx fea fec fee fef fer fes fet fex ffa ffc ffe fff ffr ffs fft ffx fra frc fre frf frr frs frt fsa fsc fse fsf fsr fss fst fsx fta ftc fte ftf ftr fts ftt ftx fxe fxr fxs fxt fxx ra- raa rac rae raf rar ras rat rax rca rcc rce rcf rcr rcs rct rcx re- rea rec ree ref rer res ret rex rfa rfc rfe rff rfr rfs rft rra rrc rrf rrr rrs rrt rsa rsc rse rsf rsr rss rst rsx rta rtc rte rtf rtr rts rtt rtx rxr rxs saa sac sae saf sar sas sat sax sca scc sce scf scr scs sct scx se- sea sec see sef ser ses set sex sfa sfc sfe sff sfr sfs sft sfx sr- sra src sre srf srr srs srt srx ss- ssa ssc sse ssf ssr sss sst ssx sta stc ste stf str sts stt stx sxc sxs sxt t-x taa tac tae taf tar tas tat tax tca tcc tce tcf tcr tcs tct tcx te- tea tec tee tef ter tes tet tex tfa tfc tfe tff tfr tfs tft tfx tra trc tre trf trr trs trt trx tsa tsc tse tsf tsr tss tst tsx tta ttc tte ttf ttr tts ttt ttx txe txf txs txt xaa xac xaf xar xas xat xcf xcr xcx xee xer xes xet xex xfa xfe xfs xft xfx xrc xrf xrt xrx xsa xsc xss xst xtc xtf xtr xts xtx xxx

-ase aaaa aaac aaae aaaf aaar aaas aaca aacc aace aacf aacr aacs aact aaea aaec aaes aafa aafc aaff aara aarc aare aars aart aasa aasc aase aasf aass aast aata aatc aatf aatt ac-t acaa acac acae acar acas acat acca accc acce accf accs acct ace- acea acec acer aces acet acfc acfe acfs acft acr- acra acrc acre acrr acrs acsa acsc acse acss acst acta actc acte actf acts actt aeac aeaf aeas aect aeer aer- aera aerc aers aesc aess aest aeta aetc aetf aetr aett aetx afaa afar afat afca afcc afcs afee afer afes afet affa affc affs afft afr- afra afrc afre afrs afsa afsc afst afta aftc afte afts afxe arac arae araf arar aras arat arax arc- arca arce arcs arct area arec aree aref ares aret arex arfa arfc arff arfs arft arr- arra arrc arre arrr arrs arrt ars- arsa arsc arse arst arta artc arte artr arts artx asaa asac asae asaf asar asas asat asc- asca ascc asce ascr asct ascx asea asec asee aser ases aset asfa asra asrc asrs assa assc asse assr asss asst asta astc aste astr asts at-t at-x ataa atac atae atar atas atat atax atca atcc atcf atcr atcs atea atec atee atef ater ates atex atfc atfe atfs atra atrc atre atrx atsc atse atst atta atte attr atts axaf axar axat axce axer axes axfr axfs axse caaa caac caaf caas caat cac- caca cacc cace cacr caec caer caes caex cafa cafc cafe caff cafs cara carc care carf carr cars cart carx casa casc case casr cass cast cat- cata catc cate catf cats catt caxa ccaa ccac ccaf ccar ccas ccat ccca cccc cccf cccs ccee ccfa ccfc ccff ccra ccrc ccre ccrf ccrs ccrt ccsa ccsf ccss ccst cctc cctt ceac cear ceas ceat cec- ceca cece cecs cect ceec cees cef- cefa cefc cer- cera cerc cere cerf cers cert cesa cesc cese cesr cess cest cet- ceta cete cets cexe cfaa cfac cfae cfar cfax cfca cfcf cfcs cffr cfra cfre cfrt cfrx cfsa cfse cfsx cfta cftc cfte cftr crac craf crar cras crat crax crca crcc crce crcr cre- crea crec cree cres cret crex crfc crfs crrt crsa crss crst crtc crtf crts csaa csac csar csas csat cscc csce cscf cscr cscs csea csec csee cser cset csfc csfr csra csrc csrs cssa csse cssr csta cstc cstr csts cstx csxt ctae ctca ctcf ctec ctfc ctfs ctrc ctrs ctsa ctsc ctss ctta ctts cxfs cxxx eaaf eaca eacc eaec eara eare ears eart easa ease east eata eate eats ecaa ecac ecar ecat ecca eccc ecce ecct ecef eces ecfa ecfc ecfr ecfs ecra ecrc ecrf ecrr ecsa ecsc ecse ecss ect- ecta ectc ectf ects eeca eecs eeea eeee eees eefa eefe eera eerc eers eese eeta eetc eete eets eext efas efax efca efes efet effa effs efsa eft- efta efts er-x eraf eras erat erca ercc erce erec erer eres eret erfc erfs erft erfx erra errc erre errs ersa erse erst erta erts esac esar