-er c-- ccc cce ccg cco ccp ccr ccs ccv ce- cec cee ceg ceo cep cer ces cev cgc cge cgg cgo cgp cgr cgs cgv co- coc coe cog coo cop cor cos cov cpc cpe cpg cpo cpp cpr cps cpv crc cre crg cro crp crr crs crv csc cse csg cso csp csr css csv cvc cve cvg cvo cvp cvr cvs cvv ec- ecc ece ecg eco ecr ecs ecv eec eee eeg eeo eep eer ees eev egc ege egg ego egp egr egs eo- eoc eoe eog eoo eop eor eos ep- epc epe epg epo epp epr eps erc ere erg ero erp err ers erv es- esc ese esg eso esp esr ess esv evc eve evg evo evp evr evs evv g-p gcc gce gcg gco gcp gcr gcs ge- gec gee geg geo gep ger ges gev ggc ggg ggo ggp ggr ggs ggv goc goe gog goo gop gor gos gov gpc gpe gpg gpo gpp gpr gps grc gre grg gro grp grr grs grv gsc gse gsg gso gsp gsr gss gsv gvc gve gvg gvo gvp gvr gvs oc- occ ocg oco ocp ocr ocs ocv oec oee oeg oeo oep oer oes ogc oge ogg ogo ogp ogs oo- ooc oog ooo oop oor oos oov op- opc ope opg opo opp opr ops opv or- orc ore org oro orp orr ors orv os- osc ose osg oso osp osr oss osv ov- ovc ove ovo ovp ovs ovv p-p pcc pce pcg pco pcp pcr pcs pcv pec pee peg peo pep per pes pev pgc pge pgg pgo pgp pgr pgs pgv poc poe pog poo pop por pos pov ppc ppe ppg ppo ppp ppr pps ppv prc pre prg pro prp prr prs prv ps- psc pse psg pso psp psr pss psv pvc pve pvg pvo pvp pvr pvs pvv rcc rce rcg rco rcp rcr rcs rcv re- rec ree reg reo rep rer res rev rgc rge rgg rgo rgp rgr rgs rgv roc roe rog roo rop ror ros rov rpc rpe rpg rpo rpp rpr rps rpv rrc rrg rrp rrr rrs rsc rse rsg rso rsp rsr rss rsv rvc rve rvg rvo rvp rvr rvs rvv scc sce scg sco scp scr scs scv se- sec see seg seo sep ser ses sev sgc sge sgg sgo sgp sgr sgs sgv soc soe sog soo sop sor sos sov spc spe spg spo spp spr sps spv sr- src sre srg sro srp srr srs srv ss- ssc sse ssg sso ssp ssr sss ssv svc sve svg svo svp svr svs svv v-e vcc vce vco vcp vcr vcs vec vee veg veo vep ver ves vgc vgg vgo vgp vgr vgs voc voe vog voo vop vor vos vov vpc vpe vpg vpo vpp vpr vps vrc vre vrg vrp vrr vrs vsc vse vsg vso vsp vsr vss vsv vvc vvg vvo vvr vvs vvv