-er c-- ccc cce ccg cco ccr cct ce- cec cee ceg ceo cer cet cgc cge cgg cgo cgr cgt co- coc coe cog coo cor cot crc cre crg cro crr crt ctc cte ctg cto ctr ctt ec- ecc ece ecg eco ecr ect eec eee eeg eeo eer eet egc ege egg ego egr egt eo- eoc eoe eog eoo eor eot erc ere erg ero err ert etc ete etg eto etr ett gcc gce gcg gco gcr gct ge- gec gee geg geo ger get ggc ggg ggo ggr ggt goc goe gog goo gor got grc gre grg gro grr grt gtc gte gtg gto gtr gtt oc- occ ocg oco ocr oct oec oee oeg oeo oer oet ogc oge ogg ogo ogt oo- ooc oog ooo oor oot or- orc ore org oro orr ort ot- otc ote otg oto otr ott rcc rce rcg rco rcr rct re- rec ree reg reo rer ret rgc rge rgg rgo rgr rgt roc roe rog roo ror rot rrc rrg rrr rrt rtc rte rtg rto rtr rtt tcc tce tcg tco tcr tct te- tec tee teg teo ter tet tgc tge tgg tgo tgr tgt to- toc toe tog too tor tot trc tre trg tro trr trt ttc tte ttg tto ttr ttt

cccc ccee ccgc ccgt ccoc ccrc ccre ccrg ccrt cctc cctt cec- cece ceco cect ceec cege cego ceor cer- cerc cere cero cert cet- cete ceto cgcc cgcg cger cgro coce coco coct cogo coot cor- corc core corg coro corr cort cotc cote coto cott crcc crce crcr cre- crec cree creg creo cret croc croe croo cror crot crrt crtc ctec ctge ctor ctot ctrc eccc ecce ecco ecct eco- ecog ecot ecrc ecrr ect- ectc ecto eeee eeoc eerc eerg eero eetc eete egcc egcg egcr egec egee eger egge eggo ego- egor egot egre egte eore eotc eoto ercc erce erec erer eret erg- ergg ergo eroc eroe eroo errc erre erro etcc etco etec etee eter etoe etre etro ette etto gc-c gccc gcet gcrg gctc gece geer geet gege gegg gego geo- geog gere gero gert gete getg geto gett gggg goce gocr goer gogo goog goor goot gore gorg goro gorr gort gote goto gott grcc grce grec gree greg gret groc grog groo gror grot grrr grtc gtco gtcr gtoe 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 otee oter oto- otoe otog otoo otor otre otro otte otto rccc rcet rcgc rcrg rctc rctg recc rece recr rect reet rege rego regr regt reog reot rere rerg rero rert rete reto retr rett rgtr rocc roce roco roeg roer roet roge rogg rogo roog roor root rorc rore roro rort rotc rote rotg roto rotr rott rrrr rtcc rtce rtcg rtee tccc tctc teco tecr tect teec teer teet 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 totc tote toto totr tott trcc tre- trec tree treg treo tret trge troc troe trog troo trot trtc trte trtr tteo tter ttoe tttt

-tree c-cor c-tec ccccc ccett ceco- ceere cegge ceoce ceoor cerc- cerce cerco cerec cerer ceret cerge cero- ceroc cerre cerro certe ceto- cette co-co cocc- cocce cocco coceo cocto coete cooee cooer coore coorg coote corce core- coree corer corge coro- corot corre corte corto coter cott- cotte cotto crece creer cregg creo- creot crete croce croco crooe croot crore crote crott ctree cttee ecto- ector ectot eeeee egger egret eorre erceg erect erege erere ergo- ergot eroge eroor erore eroto error erte erter etete etoro etree etrog etter gecco geere geert geete gegge georg gerce gerre gertt getco getee geter getgo gette getto go-go go-oo go-to gocco gocoo goget gogro googe goore goote gorce goree gorer gorge gorgo gorre goter gotoo gotor gotto grece greco greer greet grege gregg grego greot grete grett groce groet groge grogg groot grote grott grrrr gtrot ocoee ocote ocree octet octo- octor oeco- ogogo oo-er oocre ooooo orcet oreco oreo- orere orero oroco oroer orret orrgo orter ortet ortoo otego otere otero otoce ototo otter r-co- recce recco recet recog rect- recte recto reece reege reere regec reger reget regge reggo regtt reorg rere- reree reret retee reter retgo retrg retro rette retto ro-ro rocco rocor roero roger roget rogge rooer rooge roore roote rorer roter rotge roto- rotor rotot rotte rotto teege tegre teoco terce terco teret terge tergo teror terre terro tert- teter tetr- tetro tette to-go tocco toco- toece toego toerr toeto toget togge toore torce toreo toret torgo torog torre torro torte torto toter toto- totoe totoo totte treco treer treet treg- trego trere trete trett troco troee trott ttttt

ceecee cerco- cerego cerete cerote certco cetore cocco- cococo cocto- coerce cogeco cogger coo-er coocoo coogee cooter corect corgee corteo cortot cotote cotter crecco creete creote crocco crocer croote ecotec ectro- eerect eggert egrote eototo ercege eroto- errett etcetc etgert etoeot ettore geegee geegot gegger george gerege gerger gerret gertte get-go getter gogoro googoo goorge gooroo gootee gorger gorget gorgor gorter gotere gotter grecco greco- greece greete greger gregge gregor gregre greote greter grette gretto grocer grogge groote grotte grotto gteter ocreo- octett octree oeroeg oerter oooooo ortego otocec ottoor r-tree recoct recore recreo recto- rector regort regret reroot retece reteer reteet reteoo retere retore retort retree retret retro- retrog retrot retter rococo rocoto rogerr rogett rogger roogoo rooter rootte rorter rotgee rotter t-tree tecto- tector teetee teeter tercer tercet terete tergo- terreo terrer terret terror terrot terter tertre tetete tetter toccer toetoe togger togrog toogee tooter tootoo torcec torero torget torgot