-er a-a a-c a-t aaa aac aae aaf aak aao aar aat ac- aca acc ace acf ack aco acr act aea aec aee aef aek aeo aer aet af- afa afc afe aff afk afo afr aft aka akc ake akk ako akr aoa aoc aoe aof aok aoo aor aot ar- ara arc are arf ark aro arr art at- ata atc ate atf ato atr att c-- caa cac cae caf cak cao car cat cca ccc cce ccf cck cco ccr cct ce- cea cec cee cef cek ceo cer cet cfa cfc cfe cff cfk cfo cfr cft cka ckc cko ckt co- coa coc coe cof cok coo cor cot cra crc cre crf crk cro crr crt cta ctc cte ctf ctk cto ctr ctt eaa eac eae eaf eak eao ear eat ec- eca ecc ece ecf eck eco ecr ect eea eec eee eef eek eeo eer eet ef- efa efc efe eff efo efr eft eka ekc eke ekf eko ekr ekt eo- eoa eoc eoe eof eok eoo eor eot era erc ere erf erk ero err ert eta etc ete etf etk eto etr ett faa fac fae faf fak fao far fat fca fcc fce fcf fck fco fcr fct fea fec fee fef fek feo fer fet ffa ffc ffe fff ffk ffo ffr fft fka fkc fkf fkk fkt foa foc foe fof fok foo for fot fra frc fre frf frk fro frr frt fta ftc fte ftf ftk fto ftr ftt k-t ka- kaa kac kae kaf kak kao kar kat kca kcc kce kck kcr kct ke- kea kec kee kef kek keo ker ket kfa kfc kff kfo kkc kke kkk kkr kkt koa koc koe kof kok koo kor kot kra krc krf krk kro krr krt kta ktc kte ktf ktk kto ktr ktt oaa oac oae oaf oak oao oar oat oc- oca occ ocf ock oco ocr oct oea oec oee oef oeo oer oet of- ofa ofc ofe off ofo ofr oft oka okc oke okk oko okr oo- ooa ooc oof ook ooo oor oot or- ora orc ore orf ork oro orr ort ot- ota otc ote otf otk oto otr ott ra- raa rac rae raf rak rao rar rat rca rcc rce rcf rco rcr rct re- rea rec ree ref rek reo rer ret rfa rfc rfe rff rfk rfo rfr rft rkc rke rkf rkk rko rkt roa roc roe rof rok roo ror rot rra rrc rrf rrk rrr rrt rta rtc rte rtf rtk rto rtr rtt taa tac tae taf tak tao tar tat tca tcc tce tcf tck tco tcr tct te- tea tec tee tef tek teo ter tet tfa tfc tfe tff tfk tfo tfr tft tka tkc tke tkk tko tkr tkt to- toa toc toe tof tok too tor tot tra trc tre trf trk tro trr trt tta ttc tte ttf ttk tto ttr ttt

a-ak a-ok aaaa aaac aaae aaaf aaar aaca aacc aace aacf aack aaco aacr aact aaea aaec aafa aafc aaff aaka aake aaoe aaoo aara aarc aare aaro aart aata aatc aatf aatk aatt ac-t acaa acac acae acar acat acca accc acce accf acco acct ace- acea acec acek acer acet acfc acfe acft acke acoa acoe acor acot acr- acra acrc acre acro acrr acta actc acte actf acto actt aeac aeaf aect aeer aeka aer- aera aerc aero aeta aetc aetf aeto aetr aett afaa afak afao afar afat afca afcc afee afek afer afet affa affc affo afft afka afkr afoa afoe afoo afor afr- afra afrc afre afro afta aftc afte akaa akae akao akar akca akee aker akka akko akok akot akr- akra akre akte aoca aoce aora aort aotc aotf arac arae araf arak arar arat arc- arca arce arco arct area arec aree aref arek areo aret arfa arfc arff arft arka arke arko aroa aroe aroo aror arr- arra arrc arre arrk arro arrr arrt arta artc arte arto artr at-t ataa atac atae atak atar atat atca atcc atcf atck atco atcr atea atec atee atef ateo ater atfc atfe atka atkt atoc atoe atof atok ator atot atra atrc atre atrk atro atta atte atto attr caaa caac caaf caat cac- caca cacc cace cack caco cacr caec caer cafa cafc cafe caff caka cake caor cara carc care carf cark caro carr cart cat- cata catc cate catf cato catt ccaa ccac ccaf ccar ccat ccca cccc cccf ccee ccfa ccfc ccff ccoc ccra ccrc ccre ccrf ccrt cctc cctt ceac cear ceat cec- ceca cece ceco cect ceec cef- cefa cefc ceke ceor cer- cera cerc cere cerf cero cert cet- ceta cete ceto cfaa cfac cfae cfao cfar cfca cfcf cfco cffr cfoa cfor cfra cfre cfrt cfta cftc cfte cftk cftr ckac ckat ckck ckco cker ckfr ckoa ckoc ckoo ckor ckot ckrc coak coat coca coce cock coco coct cofc cofe coff coft cok- coka coke coko coof cook coot cor- cora corc core corf cork coro corr cort cota cotc cote coto cott crac craf crar crat crca crcc crce crcr cre- crea crec cree creo cret crfc crkc croc croe crok croo cror crot crrt crtc crtf ctae ctca ctcf ctec ctfc ctfo ctor ctot ctrc ctta eaaf eaca eacc eaec eara eare earo eart eata eate ecaa ecac ecao ecar ecat ecca eccc ecce ecco ecct ecef ecfa ecfc ecfr ecka ecko eco- ecot ecra ecrc ecrf ecrr ect- ecta ectc ectf ecto eeca eeea eeee eefa eefe eeka eeke eeoc eera eerc eero eeta eetc eete efca efco efeo efet effa efke efor eft- efta eka- ekco ekek eker eket ekfc ekka ekoa ekta eoka eora eore eota eotc eoto eraf erat erca ercc erce erec erer eret erfc erft erke eroc eroe eroo erra errc erre erro erta etak etat etcc etco etec etee eter