-er a-a a-c a-t aaa aac aae aao aap aar aat aax ac- aca acc ace aco acp acr act acx aea aec aee aeo aep aer aet aex aoa aoc aoe aoo aop aor aot aox ap- apa apc ape apo app apr apt apx ar- ara arc are aro arp arr art arx at- ata atc ate ato atp atr att atx ax- axa axe axo axp axr axt axx c-- caa cac cae cao cap car cat cax cca ccc cce cco ccp ccr cct ccx ce- cea cec cee ceo cep cer cet cex co- coa coc coe coo cop cor cot cox cpa cpc cpe cpo cpp cpr cpt cpx cra crc cre cro crp crr crt crx cta ctc cte cto ctp ctr ctt ctx cxc cxo cxp cxr cxt cxx eaa eac eae eao eap ear eat eax ec- eca ecc ece eco ecr ect ecx eea eec eee eeo eep eer eet eex eo- eoa eoc eoe eoo eop eor eot ep- epa epc epe epo epp epr ept epx era erc ere ero erp err ert eta etc ete eto etp etr ett etx ex- exa exc exe exo exp exr ext exx oaa oac oae oao oap oar oat oax oc- oca occ oco ocp ocr oct ocx oea oec oee oeo oep oer oet oex oo- ooa ooc ooo oop oor oot oox op- opa opc ope opo opp opr opt opx or- ora orc ore oro orp orr ort orx ot- ota otc ote oto otp otr ott ox- oxa oxc oxo oxt oxx p-p paa pac pae pao pap par pat pax pca pcc pce pco pcp pcr pct pcx pea pec pee peo pep per pet pex poa poc poe poo pop por pot pox ppa ppc ppe ppo ppp ppr ppt ppx pra prc pre pro prp prr prt prx pt- pta ptc pte pto ptp ptr ptt ptx pxc pxe pxr pxt ra- raa rac rae rao rap rar rat rax rca rcc rce rco rcp rcr rct rcx re- rea rec ree reo rep rer ret rex roa roc roe roo rop ror rot rox rpa rpc rpe rpo rpp rpr rpt rpx rra rrc rrp rrr rrt rta rtc rte rto rtp rtr rtt rtx rxp rxr t-x taa tac tae tao tap tar tat tax tca tcc tce tco tcp tcr tct tcx te- tea tec tee teo tep ter tet tex to- toa toc toe too top tor tot tox tpa tpc tpe tpo tpp tpr tpt tpx tra trc tre tro trp trr trt trx tta ttc tte tto ttp ttr ttt ttx txe txt xaa xac xap xar xat xcp xcr xcx xee xep xer xet xex xoa xoc xoo xop xor xot xox xpa xpc xpe xpo xpp xpt xrc xrt xrx xtc xtp xtr xtx xxo xxp xxx

aaaa aaac aaae aaap aaar aaca aacc aace aaco aacp aacr aact aaea aaec aaep aaoe aaoo aapa aapc aapo aapt aara aarc aare aaro aarp aart aata aatc aatt ac-t acaa acac acae acap acar acat acca accc acce acco accp acct ace- acea acec acer acet acoa acoe acop acor acot acpa acpe acpr acpt acr- acra acrc acre acro acrr acta actc acte acto actt aeac aeap aect aeer aer- aera aerc aero aeta aetc aeto aetr aett aetx aoca aoce aopo aora aort aotc apac apao apap apar apat apax apca apcc apco apcr apea apec apep aper apet apex apo- apoc apoe apoo apop apor apot apox appa appc appr appt appx apra aprc apre apro aprt apta aptc apte aptt aptx arac arae arap arar arat arax arc- arca arce arco arct area arec aree areo arep aret arex aroa aroe aroo aror arpa arpe arr- arra arrc arre arro arrr arrt arta artc arte arto artr artx at-t at-x ataa atac atae atap atar atat atax atca atcc atco atcr atea atec atee ateo atep ater atex atoc atoe atop ator atot atpr atra atrc atre atro atrp atrx atta atte atto attp attr axar axat axce axer axo- axoa axto axxo caaa caac caap caat cac- caca cacc cace caco cacr caec caer caex caor capa capc cape capo capp capt capx cara carc care caro carp carr cart carx cat- cata catc cate cato catt caxa ccaa ccac ccap ccar ccat ccca cccc cccp ccee ccoc ccpa ccpe ccpp ccpr ccra ccrc ccre ccrp ccrt cctc cctt ceac cear ceat cec- ceca cece ceco cecp cect ceec ceop ceor cepa cepc cepe cepo cepp cepr cept cer- cera cerc cere cero cerp cert cet- ceta cete ceto cetp cexe coat coax coca coce coco cocp coct coep coex coop coot copa cope copo copp copr copt cor- cora corc core coro corp corr cort cota cotc cote coto cott coxa coxe cpaa cpac cpap cpca cpce cpea cpep cper cpox cppa cpre cprt cptp cptr crac crap crar crat crax crca crcc crce crcr cre- crea crec cree creo crep cret crex croc croe croo crop cror crot crpc crrt crtc crtp ctae ctca ctcp ctec ctep ctor ctot ctpo ctpp ctrc ctrp ctta cxpo cxro cxxx eaca eacc eaec eaop eapc eapp eara eare earo earp eart eata eate ecaa ecac ecao ecar ecat ecca eccc ecce ecco ecct eco- ecop ecot ecpa ecpp ecra ecrc ecrr ect- ecta ectc ecto eeca eeea eeee eeoc eera eerc eero eeta eetc eete eext eora eore eota eotc eoto epaa epac epcc epec epee eper epoc epor epot epox eppa eppc eppo eppp epra epro eprp epta epte epxp er-x erap erat erca ercc erce ercp erec erer eret eroc eroe eroo erpa erpe erra errc erre erro erta etap etat etcc etco etec etee eter etoe etox etra etre etro etta ette etto exa- exco exec exer exo- exor expo expr expt exrx exta exte extr o-eo oaer oara oare oate ocac ocap ocat occa occc occt oce ocee