-er -ey c-- ccc cce ccf cco ccr cct ce- cec cee cef ceo cer cet cey cfc cfe cff cfo cfr cft co- coc coe cof coo cor cot coy crc cre crf cro crr crt cry ctc cte ctf cto ctr ctt cty cyc cye cyf cyo cyr cyt ec- ecc ece ecf eco ecr ect eec eee eef eeo eer eet eey ef- efc efe eff efo efr eft eo- eoc eoe eof eoo eor eot erc ere erf ero err ert ery etc ete etf eto etr ett ety eyc eye eyo eyr eyt fcc fce fcf fco fcr fct fcy fec fee fef feo fer fet fey ffc ffe fff ffo ffr fft ffy foc foe fof foo for fot foy frc fre frf fro frr frt fry ftc fte ftf fto ftr ftt fty fy- fyc fye fyo oc- occ ocf oco ocr oct oec oee oef oeo oer oet oey of- ofc ofe off ofo ofr oft oo- ooc oof ooo oor oot or- orc ore orf oro orr ort ory ot- otc ote otf oto otr ott oye oyo rcc rce rcf rco rcr rct re- rec ree ref reo rer ret rey rfc rfe rff rfo rfr rft roc roe rof roo ror rot roy rrc rrf rrr rrt rtc rte rtf rto rtr rtt rty ry- ryc rye ryf ryo ryr ryy tcc tce tcf tco tcr tct te- tec tee tef teo ter tet tey tfc tfe tff tfo tfr tft to- toc toe tof too tor tot toy trc tre trf tro trr trt try ttc tte ttf tto ttr ttt tty tyc tye tyf tyo tyr tyt ycc yce ycf yco ycy yec yee yef yeo yer yet yey yfc yfe yff yfr yft yoc yoe yof yoo yor yot yoy yrc yre yrf yro yrt ytc yte ytf yto ytr ytt yyc yye yyf yyt yyy

cccc cccf ccee ccfc ccff ccoc ccrc ccre ccrf ccrt cctc cctt cec- cece ceco cect ceec cef- cefc ceor cer- cerc cere cerf cero cert cery cet- cete ceto cfcf cfco cfcy cffr cfor cfre cfrt cfry cftc cfte cftr coce coco coct cofc cofe coff coft coof coot cor- corc core corf coro corr cort cory cotc cote coto cott coty coyf coyo coyr coyt crcc crce crcr cre- crec cree creo cret crfc croc croe croo cror crot croy crrt crtc crtf cry- cryo ctcf ctec ctfc ctfo ctor ctot ctrc cyc- cycc cyfe cyft cyre cyrt cyt- cyte cyto cyy- cyyc eccc ecce ecco ecct ecef ecfc ecfr eco- ecot ecrc ecrf ecrr ect- ectc ectf ecto eeee eefe eeoc eerc eero eery eetc eete efco efeo efet effy efor eft- eore eotc eoto ercc erce erec erer eret erfc erft eroc eroe eroo errc erre erro eryc erye etcc etco etec etee eter etfc etfe etoe etoy etre etro ette etto etty eyec eyer eyet eyey eyot eyre eyry eyte eyyr fccf fcot fcto fcty fece fect feer feet fefc fefe feff fefo feof ferc fere fero ferr fert fery fete fetr fett feyr feyt ffcc ffee ffff ffrr fftf foce foco foer fofo foof foot for- fore foro forr fort fote foto fott foty foyt frcc free freo fret frey frfc froe frot frye ft-c fter ftfc ftfy fyce fyeo fyfe fyre fyry o-eo occc occt oce ocee ocef ocet ocre ocro ocrr oct- octe octo octy oec- oecc oeec oere oeye oeyo ofcr ofer off- offc offe offo offr offy ofor ofre oocr ooer ooff oofy oooo oore oort oory ooty orce orco ore- orec oreo orer orey orfe orff oro- oroe orof oror orot oroy orro orry ortc orte orto otee oter otfc oto- otoe otof otoo otor otoy otre otro otry otte otto otyr oyce oyee oyer oyre rccc rcet rcfc rctc rcyc recc rece recr rect recy reef reet refe reff refr reft reof reot rere rero rert rery rete reto retr rett rety reye rfef rffc rftc rocc roce roco roer roet roey rofc rofe roff rofo roof roor root rorc rore roro rort rory rotc rote roto rotr rott roty roye royt rrfc rrrr rtcc rtce rtee rtfc ryet ryfe ryff ryft ryot rytt ryyf ryyt tccc tcfc tctc teco tecr tect teec teef teer teet tefc teff teft teor ter- terc tere terf tero terr tery tete teto tetr tett teye teyr tfec tfot tftc to-y toce toco toee toer toet toey toff tofo toft toof toor toot torc tore torf toro torr tort tory totc tote toto totr tott toty toyo toyt trcc tre- trec tree tref treo tret trey trfc trfr troc troe troo trot troy trtc trte trtr try- trye tryo tteo tter ttfc ttff ttoe ttoy tttt tyce tyco tyee tyer tyet tyfe tyff tyft tyr- tyre tyrf tyro tyrr tyte tyto tytt tyty yccc ycee yctc yeer yeet yefe yeff yeft yeof yeot yere yero yerr yert yery yete yeto yett yeye yeyo yeyr yfet yfte yoff yoof yoot yore yoro yort yory yote yott yoye yoyo yrof ytre yyfe yyff yyyy

-tree c-cor c-tec ccccc ccett ccoyo ceco- cecyt ceere cefor ceoce ceoor cerc- cerce cerco cerec cerer ceret cero- ceroc cerre cerro certe certy ceto- cette cetty co-co cocc- cocce cocco coceo cocto coete cofer coffe coffy cofre cofyr cooee cooer cooey coore coote cooty corce corcy core- coree corer corey corfe corfo coro- corot corre corry corte corto cory- coter cott- cotte cotto cotty coyer coyet coyfe coyte crece crecy creer creft creo- creot crete croce croco crocy croft crooe croot crore crote crott cryer cryo- cryof ctree cttee cyete cyfer cyfre cyrt- cytec cytee cyto- cytte cytyc ecoff ectfe ecto- ector ectot eeeee efere efetf effer effet effry efore efter eofor eorre erect erere eroor erore eroto errey error erte erter etete etoro etree etter eyeof eyere eyeto eyrer feeor feere fefor feoey feoff ferce feret ferr- ferre ferro ferry ferte feter feto- fetor fette feyer feyre focer