-er c-- ccc cce ccf cck cco ccr ccv ce- cec cee cef cek ceo cer cev cfc cfe cff cfk cfo cfr cfv ckc cko co- coc coe cof cok coo cor cov crc cre crf crk cro crr crv cvc cve cvf cvk cvo cvr cvv ec- ecc ece ecf eck eco ecr ecv eec eee eef eek eeo eer eev ef- efc efe eff efo efr ekc eke ekf eko ekr ekv eo- eoc eoe eof eok eoo eor erc ere erf erk ero err erv evc eve evf evo evr evv fcc fce fcf fck fco fcr fcv fec fee fef fek feo fer fev ffc ffe fff ffk ffo ffr ffv fkc fkf fkk foc foe fof fok foo for frc fre frf frk fro frr fvc fvk kcc kce kck kcr ke- kec kee kef kek keo ker kev kfc kff kfo kkc kke kkk kkr kkv koc koe kof kok koo kor krc krf krk kro krr krv kvk kvo kvr kvv oc- occ ocf ock oco ocr ocv oec oee oef oeo oer of- ofc ofe off ofo ofr ofv okc oke okk oko okr oo- ooc oof ook ooo oor oov or- orc ore orf ork oro orr orv ov- ovc ove ovf ovo ovv rcc rce rcf rco rcr rcv re- rec ree ref rek reo rer rev rfc rfe rff rfk rfo rfr rfv rkc rke rkf rkk rko rkv roc roe rof rok roo ror rov rrc rrf rrk rrr rvc rve rvf rvo rvr rvv v-e vcc vce vcf vco vcr vec vee vef vek veo ver vfc vff vfr vfv voc voe vof vok voo vor vov vrc vre vrf vrk vrr vvc vvo vvr vvv

cccc cccf cccv ccee ccfc ccff ccoc ccrc ccre ccrf ccvo cec- cece ceco ceec cef- cefc ceke ceor cer- cerc cere cerf cero cevo cfcf cfco cffr cfor cfre ckck ckco ckcv cker ckfr ckoc ckoo ckor ckrc ckvo coce cock coco cofc cofe coff cok- coke coko coof cook cor- corc core corf cork coro corr cove covo crcc crce crcr cre- crec cree creo crfc crkc croc croe crok croo cror cvcc cver cvfr cvrr eccc ecce ecco ecef ecfc ecfr ecko eco- ecrc ecrf ecrr ecrv eeee eefe eeke eeoc eerc eero efco efeo efke efor ekco ekek eker ekfc eore ercc erce erec erer erev erfc erke eroc eroe eroo errc erre erro erve ever evoe evoo evre evvk f--k fccf fece feck feek feer fefc fefe feff fefo feke feko feof ferc fere ferk fero ferr ferv feve fevr ffcc ffee ffff ffrr foce fock foco foer fofo foke foof fook for- fore fork foro forr fove fr-v frcc free freo frfc froe kccc kcck kccr kccv kcec kcee kceo kcfc kcfo kcfv kckc kckf kckk kcko kckr kckv kcoe kcof kcor kcrc kcro kcrr kcrv kcvk kcvo kcvr kcvv keck keco kecr keef keek keer kefc keff kefr kekc keke keko keok ker- kerc kere kerf kerk kero kerr kerv keve kfcf kfco kfcr kfer kfff kffk kffv kfok kfoo kfor kfrc kfre kfro kfrr kfve kfvr kkck kkco kkcr kkfr kkkk kkoo kkor kkov kkrc kkre kkrf kkrk kkro kkrr kkrv kkvr kkvv kocf kock kofc kofe koff kofk kofo kokc koke kokf kokk koko kokr kooc kook kooo koor koov korc kore korf kork koro korr korv kovc kove kovk kovo kovr krcc krce krco krec kree kref krek kreo krev krfc krfe krff krfo krkc krke krkk krko krkr krkv kroc kroe krof krok kroo kror krov krrc krre krrf krrk krro krrr krvc krve krvf krvk krvo krvr krvv kvcc kvce kvcf kvck kvco kvcr kvcv kvec kver kvfc kvoc kvoe kvok kvoo kvor kvov kvrc kvre kvrf kvro kvrr kvrv kvvf kvvr kvvv o-eo occc oce ocee ocef ocke ocre ocro ocrr oec- oecc oeec oere ofcr ofek ofer off- offc offe offo offr ofor ofre oker okko okok okor okre okro oocr ooer ooff oooo oore orce orco ore- orec orek oreo orer orfe orff orke orko oro- oroe orof orok oror orro orve orvr ovee over ovo- ovoo ovre rccc rcfc rcvr recc rece reck recr reef reek reev refe reff refr reke reko reof rere rero reve revo rfef rffc rkkf rocc roce rock roco roer roev rofc rofe roff rofo roke rokk roko rokr roof rook roor rorc rore rork roro rove rovo rrfc rrrr rv-c rver vecc veck veer veke veor ver- vere verk vero veve vevo vfcc vfor vkor voce voer voff vofr voke vooc voor vor- vore voro vovk vref vreo vroc vver vvvv

c-cor c-evo ccccc ceco- ceere cefor cekov ceoce ceoor cerc- cerce cerco cerec cerer cerke cero- ceroc cerre cerro cervo co-co cocc- cocce cocco coceo cocke coeve cofer coffe cofre coker cokk- cooee cooer cooke coore corce core- coree corer corfe corfo corke coro- corre corve corvo covek coveo cover crece creek creer creke creo- creve croce crock croco croke crooe crook crore crove cvrce ecker ecoff ecorv eecke eeeee eevee eever efere effer efore ekeko ekker eofor eorre erere ereve erkec erkko erkoc eroor erore error eveck eveof evere evero everr eveve evoke evoor feeor feere fefor feock feoff ferce ferr- ferre ferro fever fevre focer focke fokke foore force fore- foreo forro forvo freck freek freer freke frere frevo frock frore kecer keefe keere keeve kefee kekec kerek kerre kerve kever ko-ko kocek kocer kocke kocov koker kokko kokor kokre korck korec korek korff korke koror korro korve kovor kre-o kreef kreek kreke kreo- krock kroke o-fer ocker ockro ocoee ocree oeco- ofeve offek offer offof offre okeke okere okker okoc okoro oo-er oocre ooooo oovoo oreck oreco oreo- orere orero orfeo orfoe orfor oroco oroer oroke oveco over- overo r-co- recce recco recke reece reefe reere reeve refco refer reffe reffo rekke rere- reree revco rever ro-ro rocco rocke rocko rocor rocov roero roffe rofor rokee roker rokke rokkk rooer roofe rooke roore roove