-er c-- ccc cce ccg cco ccr cct ccv ce- cec cee ceg ceo cer cet cev cgc cge cgg cgo cgr cgt cgv co- coc coe cog coo cor cot cov crc cre crg cro crr crt crv ctc cte ctg cto ctr ctt ctv cvc cve cvg cvo cvr cvt cvv ec- ecc ece ecg eco ecr ect ecv eec eee eeg eeo eer eet eev egc ege egg ego egr egt eo- eoc eoe eog eoo eor eot erc ere erg ero err ert erv etc ete etg eto etr ett etv evc eve evg evo evr evt evv gcc gce gcg gco gcr gct ge- gec gee geg geo ger get gev ggc ggg ggo ggr ggt ggv goc goe gog goo gor got gov grc gre grg gro grr grt grv gtc gte gtg gto gtr gtt gtv gvc gve gvg gvo gvr gvt oc- occ ocg oco ocr oct ocv oec oee oeg oeo oer oet ogc oge ogg ogo ogt oo- ooc oog ooo oor oot oov or- orc ore org oro orr ort orv ot- otc ote otg oto otr ott otv ov- ovc ove ovo ovv rcc rce rcg rco rcr rct rcv re- rec ree reg reo rer ret rev rgc rge rgg rgo rgr rgt rgv roc roe rog roo ror rot rov rrc rrg rrr rrt rtc rte rtg rto rtr rtt rtv rvc rve rvg rvo rvr rvt rvv tcc tce tcg tco tcr tct tcv te- tec tee teg teo ter tet tev tgc tge tgg tgo tgr tgt tgv to- toc toe tog too tor tot tov trc tre trg tro trr trt trv ttc tte ttg tto ttr ttt ttv tvc tve tvg tvo tvr tvt v-e vcc vce vco vcr vct vec vee veg veo ver vet vgc vgg vgo vgr vgt voc voe vog voo vor vot vov vrc vre vrg vrr vrt vtc vte vtg vto vtr vtt vtv vvc vvg vvo vvr vvt vvv

cccc cccv ccee ccgc ccgt ccoc ccrc ccre ccrg ccrt cctc cctt cctv ccvo cec- cece ceco cect ceec cege cego ceor cer- cerc cere cero cert cet- cete ceto cetv cevo cgcc cgcg cger cgro coce coco coct cogo coot cor- corc core corg coro corr cort cotc cote coto cott cove covo crcc crce crcr cre- crec cree creg creo cret croc croe croo cror crot crrt crtc crtv ctec ctge ctor ctot ctrc ctvo ctvt cvcc cver cvet cvrg cvrr cvte eccc ecce ecco ecct eco- ecog ecot ecrc ecrr ecrv ect- ectc ecto ectv eeee eeoc eerc eerg eero eetc eete egcc egcg egcr egec egee eger egge eggo ego- egor egot egov egre egte eore eotc eoto ercc erce erec erer eret erev erg- ergg ergo eroc eroe eroo errc erre erro erve etcc etco etec etee eter etoe etre etro ette etto etvo ever evet evoe evoo evre gc-c gccc gcet gcov gcrg gctc gece geer geet gege gegg gego geo- geog gere gero gert gete getg geto gett geve gevo gggg goce gocr goer gogo goog goor goot gore gorg goro gorr gort gote goto gott gotv gove govt grcc grce grec gree greg gret grev groc grog groo gror grot grov grrr grtc grve gtco gtcr gtoe gvtv gvvv o-eo occc occt oce ocee ocet ocre ocro ocrr oct- octe octo oec- oecc oeec oere ogee oger ogge ogog ogre ogro oocr ooer oooo oore oort orce orco ore- orec oreg oreo orer orge orgo oro- oroe oror orot orro ortc orte orto orve orvr otee oter oto- otoe otog otoo otor otov otre otro otte otto ovee over ovet ovo- ovoo ovot ovre rccc rcet rcgc rcrg rctc rctg rctv rcvr recc rece recr rect reet reev rege rego regr regt reog reot rere rerg rero rert rete reto retr rett reve revo rgtr rocc roce roco roeg roer roet roev roge rogg rogo roog roor root rorc rore roro rort rotc rote rotg roto rotr rott rove rovo rrrr rtcc rtce rtcg rtee rtve rv-c rver tccc tcov tctc teco tecr tect teec teer teet teev tegg tego tegt teor ter- terc tere tero terr tete teto tetr tett tgcc tgtc toce toco toee toer toet toge togo togr togt toor toot torc tore torg toro torr tort torv totc tote toto totr tott tove tovo trcc tre- trec tree treg treo tret trev trge troc troe trog troo trot trtc trte trtr tteo tter ttoe tttt tver tvgc tvro tvrr tvtv vecc veer veet vege veor ver- vere vero vert vete veto vetr veve vevo vgcc voce voer voet voge vogt vooc voog voor voot vor- vore voro vort vote voto vreo vret vroc vrot vrto vtec vver vvog vvvv

-tree c-cor c-evo c-tec ccccc ccctv ccett ceco- ceere cegge ceoce ceoor cerc- cerce cerco cerec cerer ceret cerge cero- ceroc cerre cerro certe cervo ceto- cette cgetv co-co cocc- cocce cocco coceo cocto coete coeve cooee cooer coore coorg coote corce core- coree corer corge coro- corot corre corte corto cortv corve corvo coter cott- cotte cotto coveo cover covet crece creer cregg creo- creot crete creve croce croco crooe croot crore crote crott crove ctree cttee cvrce ecorv ecto- ector ectot eeeee eevee eever egger egret eorre erceg erect erege erere ereve ergo- ergot eroge eroor erore eroto error erte erter etete etoro etree etrog etter evere everg evero everr evert evete evett eveve evoor evote gecco geere geert geete gegge georg gerce gerov gerre gertt gerve getco getee geter getgo getov gette getto gettv gever go-go go-oo go-to gocco gocoo goget gogro googe goore goote gorce goree gorer gorev gorge gorgo gorre goter gotoo gotor gotto govce gover grece greco greer greet grege gregg grego greot grete grett greve grevo groce groet groge grogg groot grote grott grove grrrr gtrot ocoee ocote ocree octet octo- octor oeco- ogogo oo-er oocre ooooo oovoo orcet oreco oreo- orere orero orgov oroco oroer orret orrgo