-er c-- ccc ccd cce cco ccr cct ccx cdc cdd cde cdo cdr cdt cdx ce- cec ced cee ceo cer cet cex co- coc cod coe coo cor cot cox crc crd cre cro crr crt crx ctc ctd cte cto ctr ctt ctx cxc cxo cxr cxt cxx dcc dcd dce dco dcr dct dcx ddc ddd dde ddo ddr ddt ddx de- dec ded dee deo der det dex doc dod doe doo dor dot dox drc drd dre dro drr drt drx dtc dtd dte dto dtr dtt dtx dxc dxd dxo dxr dxt dxx ec- ecc ecd ece eco ecr ect ecx ed- edc edd ede edo edr edt edx eec eed eee eeo eer eet eex eo- eoc eod eoe eoo eor eot erc erd ere ero err ert etc etd ete eto etr ett etx ex- exc exd exe exo exr ext exx oc- occ ocd oco ocr oct ocx odc odd ode odo odr odt oec oed oee oeo oer oet oex oo- ooc ood ooo oor oot oox or- orc ord ore oro orr ort orx ot- otc otd ote oto otr ott ox- oxc oxo oxt oxx rcc rcd rce rco rcr rct rcx rdc rdd rde rdo rdr rdt rdx re- rec red ree reo rer ret rex roc rod roe roo ror rot rox rrc rrd rrr rrt rtc rtd rte rto rtr rtt rtx rxr t-x tcc tcd tce tco tcr tct tcx tdc tdd tde tdo tdr tdt tdx te- tec ted tee teo ter tet tex to- toc tod toe too tor tot tox trc trd tre tro trr trt trx ttc ttd tte tto ttr ttt ttx txe txt xcd xcr xcx xdc xde xdr xdt xed xee xer xet xex xoc xod xoo xor xot xox xrc xrd xrt xrx xtc xtr xtx xxo xxx

c-cd cccc ccdc ccdr cced ccee ccoc ccod ccrc ccre ccrt cctc cctt cd-e cd-r cddr cdec cder cdex cdot cdre cec- cece ceco cect cedd cede cedo cedt ceec ceor cer- cerc cerd cere cero cert cet- cete ceto cexe coce coco coct codd code coed coex cood coot cor- corc cord core coro corr cort cotc cote coto cott coxe crcc crce crcr crdc cre- crec cred cree creo cret crex croc crod croe croo cror crot crrt crtc ctec ctor ctot ctrc cxro cxxx dccc dcct dctc dcxx dddd ddoc ddot ddrc ddre dec- decc decd dece deco dect dedd dede dedo deed deer deet deor der- derc dere dero derr dete deto detr dex- dexe dext do-x doce doco doct dod- dodd dode dodo doer dood door doot dorc dord dore doro dorr dort dotd dote doto dott dred dree dret drod drot dtcc dted dtor dtot dtox dttx dtxt dxcc dxco dxdc dxdr dxec dxed dxoc dxrd dxre dxrr dxrt dxrx dxxr dxxx eccc ecce ecco ecct ecdc eced eco- ecod ecot ecrc ecrr ect- ectc ecto eddc edde eddo ede- eder edex edoc edod eede eeee eeoc eerc eero eetc eete eext eocd eode eore eotc eotd eoto er-x ercc erce erde erec ered erer eret eroc erod eroe eroo errc erre erro etcc etco etec etee eter etoe etox etre etro ette etto exco exec exed exer exo- exod exor exrx exte extr o-eo occc occt oce oced ocee ocet ocre ocro ocrr oct- octe octo oddd oded odeo oder odet odex odoo odor odot oec- oecc oedo oeec oere oocr ooer oooo oord oore oort orce orco orde ordo ore- orec ored oreo orer orex oro- oroe oror orot orro ortc orte orto otcd oted otee oter oto- otoe otoo otor otre otro otte otto oxer oxo- oxox oxxo rccc rcdc rcde rcet rcrd rctc rder rdoc recc recd rece recr rect redc redd rede redo redr redx reed reet reod reot rerd rere rero rert retd rete reto retr rett rexx rocc roce roco rodd rode rodo roed roer roet rood roor root roox rorc rore roro rort rotc rote roto rotr rott roxo rred rrrr rtcc rtce rtdt rtee rtex tccc tcdd tctc tdor teco tecr tect tedd tede tedx teec teed teer teet teor ter- terc tere tero terr tete teto tetr tett tetx text toce toco todd tode todo todt toed toee toer toet tood toor toot torc tord tore toro torr tort torx totc totd tote toto totr tott tox- toxo toxt trcc tre- trec tred tree treo tret trex troc trod troe troo trot trox trtc trte trtr tteo tter ttoe tttt txtr x-ed xdcc xeer xer- xero xert xexe xoco xoro xote xoxo xrcd xrod xtro xxxo xxxx

-tree c-cor c-dot c-tec ccccc ccett ceco- ceddo ceded ceder cedex cedor cedr- cedre cedro ceede ceedo ceere ceoce ceoor cerc- cerce cerco cerdo cerec cered cerer ceret cero- ceroc cerre cerro certe ceto- cette co-co co-ed cocc- cocce cocco coceo cocto codco codde codec coded coder codex codo coete coode cooed cooee cooer coord coore coote corce corde core- cored coree corer corex coro- corod corot corre corte corto coted coter cott- cotte cotto coxed crece crede credo creed creer creo- creot crete croce croco crode crodo crood crooe croot crore crote crott ctree cttee d-dot d-rod d-tox dcore ddddd decet decor dedde dedee deder deece deede deere deore deoro derce derde dered dero- derre derro deter detoo detox detre dette do-do doced docer docet dodec dodoo dodro doerr dooce doodo doore doorx doote dorce dordt dored doree doret dorot dorre dorte doted doter dotoo dotto doxed drdre dredd drede dreed drere drode drood drote drott dxdxd e-dee e-otd ecord ecto- ector ectot edder eddoe eddre edeo- edere edocr edoor edott edred eeeee eerde eorre erdec erdoc erdor erdre erect erede erere erode erodr eroor erore eroto erred error erte erter etete etext etoro etree etter exced exect execx exede exert exode exord exore exort exred exter extre extro ocoee ocote ocree octet octo- octor odder odeco odeto odore oeco- oo-er oocre ooooo