-er -ol c-- ccc cce ccg ccl ccn cco ccr ccs ce- cec cee ceg cel cen ceo cer ces cgc cge cgg cgl cgn cgo cgr cgs cl- clc cle clg cll cln clo clr cls cn- cnc cne cng cnl cnn cno cnr cns co- coc coe cog col con coo cor cos crc cre crg crl crn cro crr crs csc cse csg csl csn cso csr css ec- ecc ece ecg ecl ecn eco ecr ecs eec eee eeg eel een eeo eer ees egc ege egg egl egn ego egr egs elc ele elg ell eln elo elr els en- enc ene eng enl enn eno enr ens eo- eoc eoe eog eol eon eoo eor eos erc ere erg erl ern ero err ers es- esc ese esg esl esn eso esr ess gcc gce gcg gcl gcn gco gcr gcs ge- gec gee geg gel gen geo ger ges ggc ggg ggn ggo ggr ggs glc gle glg gll gln glo glr gls gnc gne gnl gnn gno gnr gns goc goe gog gol gon goo gor gos grc gre grg grl grn gro grr grs gsc gse gsg gsl gsn gso gsr gss lcc lce lcg lcl lcn lco lcr lcs lec lee leg lel len leo ler les lgc lge lgg lgl lgn lgo lgr lgs llc lle llg lll lln llo llr lls lnc lne lng lnl lnn lno lnr lns loc loe log lol lon loo lor los lrc lrg lrn lro lrr lrs lsc lse lsg lsl lsn lso lsr lss ncc nce ncg ncl ncn nco ncr ncs ne- nec nee neg nel nen neo ner nes ngc nge ngg ngl ngn ngo ngs nlc nle nlg nll nln nlo nlr nls nnc nne nng nnl nnn nno nns no- noc noe nog nol non noo nor nos nrc nre nrg nrl nrn nro nrr nrs nsc nse nsg nsl nsn nso nsr nss oc- occ ocg ocl ocn oco ocr ocs oec oee oeg oel oen oeo oer oes ogc oge ogg ogl ogn ogo ogs olc ole olg oll oln olo ols on- onc one ong onl onn ono onr ons oo- ooc oog ool oon ooo oor oos or- orc ore org orl orn oro orr ors os- osc ose osg osl osn oso osr oss rcc rce rcg rcl rcn rco rcr rcs re- rec ree reg rel ren reo rer res rgc rge rgg rgn rgo rgr rgs rlc rle rlg rll rln rlo rlr rls rnc rng rnn rno rnr rns roc roe rog rol ron roo ror ros rrc rrg rrl rrn rrr rrs rsc rse rsg rsl rsn rso rsr rss scc sce scg scl scn sco scr scs se- sec see seg sel sen seo ser ses sgc sge sgg sgl sgn sgo sgr sgs slc sle slg sll sln slo slr sls snc sne sng snl snn sno snr sns soc soe sog sol son soo sor sos sr- src sre srg srl srn sro srr srs ss- ssc sse ssg ssl ssn sso ssr sss