-er c-- ccc cce cco ccr cct ccv ce- cec cee ceo cer cet cev co- coc coe coo cor cot cov crc cre cro crr crt crv ctc cte cto ctr ctt ctv cvc cve cvo cvr cvt cvv ec- ecc ece eco ecr ect ecv eec eee eeo eer eet eev eo- eoc eoe eoo eor eot erc ere ero err ert erv etc ete eto etr ett etv evc eve evo evr evt evv oc- occ oco ocr oct ocv oec oee oeo oer oet oo- ooc ooo oor oot oov or- orc ore oro orr ort orv ot- otc ote oto otr ott otv ov- ovc ove ovo ovv rcc rce rco rcr rct rcv re- rec ree reo rer ret rev roc roe roo ror rot rov rrc rrr rrt rtc rte rto rtr rtt rtv rvc rve rvo rvr rvt rvv tcc tce tco tcr tct tcv te- tec tee teo ter tet tev to- toc toe too tor tot tov trc tre tro trr trt trv ttc tte tto ttr ttt ttv tvc tve tvo tvr tvt v-e vcc vce vco vcr vct vec vee veo ver vet voc voe voo vor vot vov vrc vre vrr vrt vtc vte vto vtr vtt vtv vvc vvo vvr vvt vvv

cccc cccv ccee ccoc ccrc ccre ccrt cctc cctt cctv ccvo cec- cece ceco cect ceec ceor cer- cerc cere cero cert cet- cete ceto cetv cevo coce coco coct coot cor- corc core coro corr cort cotc cote coto cott cove covo crcc crce crcr cre- crec cree creo cret croc croe croo cror crot crrt crtc crtv ctec ctor ctot ctrc ctvo ctvt cvcc cver cvet cvrr cvte eccc ecce ecco ecct eco- ecot ecrc ecrr ecrv ect- ectc ecto ectv eeee eeoc eerc eero eetc eete eore eotc eoto ercc erce erec erer eret erev eroc eroe eroo errc erre erro erve etcc etco etec etee eter etoe etre etro ette etto etvo ever evet evoe evoo evre o-eo occc occt oce ocee ocet ocre ocro ocrr oct- octe octo oec- oecc oeec oere oocr ooer oooo oore oort orce orco ore- orec oreo orer oro- oroe oror orot orro ortc orte orto orve orvr otee oter oto- otoe otoo otor otov otre otro otte otto ovee over ovet ovo- ovoo ovot ovre rccc rcet rctc rctv rcvr recc rece recr rect reet reev reot rere rero rert rete reto retr rett reve revo rocc roce roco roer roet roev roor root rorc rore roro rort rotc rote roto rotr rott rove rovo rrrr rtcc rtce rtee rtve rv-c rver tccc tcov tctc teco tecr tect teec teer teet teev teor ter- terc tere tero terr tete teto tetr tett toce toco toee toer toet toor toot torc tore toro torr tort torv totc tote toto totr tott tove tovo trcc tre- trec tree treo tret trev troc troe troo trot trtc trte trtr tteo tter ttoe tttt tver tvro tvrr tvtv vecc veer veet veor ver- vere vero vert vete veto vetr veve vevo voce voer voet vooc voor voot vor- vore voro vort vote voto vreo vret vroc vrot vrto vtec vver vvvv

-tree c-cor c-evo c-tec ccccc ccctv ccett ceco- ceere ceoce ceoor cerc- cerce cerco cerec cerer ceret cero- ceroc cerre cerro certe cervo ceto- cette co-co cocc- cocce cocco coceo cocto coete coeve cooee cooer coore coote corce core- coree corer coro- corot corre corte corto cortv corve corvo coter cott- cotte cotto coveo cover covet crece creer creo- creot crete creve croce croco crooe croot crore crote crott crove ctree cttee cvrce ecorv ecto- ector ectot eeeee eevee eever eorre erect erere ereve eroor erore eroto error erte erter etete etoro etree etter evere evero everr evert evete evett eveve evoor evote ocoee ocote ocree octet octo- octor oeco- oo-er oocre ooooo oovoo orcet oreco oreo- orere orero oroco oroer orret orter ortet ortoo orvet otere otero otoce ototo otrov otter ottov oveco over- overo overt ovett r-co- recce recco recet rect- recte recto reece reere reeve rere- reree reret retee reter retro rette retto revco rever revet ro-ro rocco rocor rocov roero rooer roore roote roove rorer roter roto- rotor rotot rotte rotto rover rtrev rttov teoco terce terco teret teror terre terro tert- terve tervo teter tetov tetr- tetro tette tevet tevot tocco toco- toece toerr toeto toore torce toreo toret torre torro torte torto torve toter toto- totoe totoo totte tover tovet treco treer treet trere trete trett treve troco troee trott trove trovo ttttt tvvcr vecer vecov veeco veere veeve verco verot verre verte verve vetco vette vetto vevce veveo vever voere voore vorce vorre vorte voter votre votto

ceecee cerco- cerete cerote cerove cerovo certco cetore cocco- cococo cocto- coerce coo-er coocoo cooter corect corteo cortot corvee corver corvet cotote cotter covert crcevo crecco creete creote crevet crocco crocer croote cvoter ecotec ecover ectro- eerect eototo eroto- errett etcetc etoeot ettore evcort everte evotec ocreo- octett octree oerter oooooo orever otocec otovec ottoor overer overte r-tree receve recoct recore recreo recto- rector reever reroot retece reteer reteet reteoo retere retore retort retree retret retro- retrot retter revere revert revoce revote revver rococo rocoto rooter rootte rorter rotter rovere t-tree tecto- tector teetee teeter teevee tercer tercet terete terreo terrer terret terror terrot terter tertre tetete tetovo tetter tevere toccer toetoe tooter tootoo torcec torero tororo torovo torret tortor torver totoro totrot totter tovero tovore tr-rec treece treete tretee trette trevet trevor trotec trotro trotte trover veerer veerto vercoe veroor verree verrer verret vertre verver vervet vervo vetere vetoer vetovo vetrov vetter vocore vorort vrtoce vvvvvv

cerreto cert-ee cervere cocotte coercee coercer correct cotorro coverer coveter crevroe crocere crottet e-corce e-voter ecocert ecoreco eeeroer erecter erector erovete errevet evector everett evertor octette oreovec ottetto ottrott overrev ovrette recerve recetor recetto recorte recover recovre reerect reteere reterre retrete rettert rettore reveree reverer revette rococco rootrot roovere tec-tec tercero terere tereto- terreer terrere