-er -ol c-- ccc cce ccg ccl ccn cco ccp ccr ccs ce- cec cee ceg cel cen ceo cep cer ces cgc cge cgg cgl cgn cgo cgp cgr cgs cl- clc cle clg cll cln clo clp clr cls cn- cnc cne cng cnl cnn cno cnp cnr cns co- coc coe cog col con coo cop cor cos cpc cpe cpg cpl cpn cpo cpp cpr cps crc cre crg crl crn cro crp crr crs csc cse csg csl csn cso csp csr css ec- ecc ece ecg ecl ecn eco ecr ecs eec eee eeg eel een eeo eep eer ees egc ege egg egl egn ego egp egr egs elc ele elg ell eln elo elp elr els en- enc ene eng enl enn eno enp enr ens eo- eoc eoe eog eol eon eoo eop eor eos ep- epc epe epg epl epn epo epp epr eps erc ere erg erl ern ero erp err ers es- esc ese esg esl esn eso esp esr ess g-p gcc gce gcg gcl gcn gco gcp gcr gcs ge- gec gee geg gel gen geo gep ger ges ggc ggg ggn ggo ggp ggr ggs glc gle glg gll gln glo glp glr gls gnc gne gnl gnn gno gnp gnr gns goc goe gog gol gon goo gop gor gos gpc gpe gpg gpl gpn gpo gpp gpr gps grc gre grg grl grn gro grp grr grs gsc gse gsg gsl gsn gso gsp gsr gss l-p lcc lce lcg lcl lcn lco lcp lcr lcs lec lee leg lel len leo lep ler les lgc lge lgg lgl lgn lgo lgp lgr lgs llc lle llg lll lln llo llp llr lls lnc lne lng lnl lnn lno lnp lnr lns loc loe log lol lon loo lop lor los lpc lpe lpg lpl lpn lpo lpp lpr lps lrc lrg lrn lro lrp lrr lrs lsc lse lsg lsl lsn lso lsp lsr lss ncc nce ncg ncl ncn nco ncp ncr ncs ne- nec nee neg nel nen neo nep ner nes ngc nge ngg ngl ngn ngo ngp ngs nlc nle nlg nll nln nlo nlp nlr nls nnc nne nng nnl nnn nno nnp nns no- noc noe nog nol non noo nop nor nos npc npe npg npl npn npo npp npr nps nrc nre nrg nrl nrn nro nrp nrr nrs nsc nse nsg nsl nsn nso nsp nsr nss oc- occ ocg ocl ocn oco ocp ocr ocs oec oee oeg oel oen oeo oep oer oes ogc oge ogg ogl ogn ogo ogp ogs olc ole olg oll oln olo olp ols on- onc one ong onl onn ono onp onr ons oo- ooc oog ool oon ooo oop oor oos op- opc ope opg opl opn opo opp opr ops or- orc ore org orl orn oro orp orr ors os- osc ose osg osl osn oso osp osr oss p-p pcc pce pcg pcl pcn pco pcp pcr pcs pec pee peg pel pen peo pep per pes pgc pge pgg pgl pgn pgo pgp pgr pgs plc ple plg pll pln plo plp plr pls pn- pnc pne png pnl pnn pno pnp pnr pns poc poe pog pol pon poo pop por pos ppc ppe ppg ppl ppn ppo ppp ppr pps prc pre prg prl prn pro prp prr prs ps- psc pse psg psl psn pso psp psr pss rcc rce rcg rcl rcn rco rcp rcr rcs re- rec ree reg rel ren reo rep rer res rgc rge rgg rgn rgo rgp rgr rgs rlc rle rlg rll rln rlo rlp rlr rls rnc rng rnn rno rnp rnr rns roc roe rog rol ron roo rop ror ros rpc rpe rpg rpl rpn rpo rpp rpr rps rrc rrg rrl rrn rrp rrr rrs rsc rse rsg rsl rsn rso rsp rsr rss scc sce scg scl scn sco scp scr scs se- sec see seg sel sen seo sep ser ses sgc sge sgg sgl sgn sgo sgp sgr sgs slc sle slg sll sln slo slp slr sls snc sne sng snl snn sno snp snr sns soc soe sog sol son soo sop sor sos spc spe spg spl spn spo spp spr sps sr- src sre srg srl srn sro srp srr srs ss- ssc sse ssg ssl ssn sso ssp ssr sss