-er -ic -ol c-- ccc cce ccg cci ccl cco ccr ccs ce- cec cee ceg cei cel ceo cer ces cgc cge cgg cgi cgl cgo cgr cgs ci- cic cie cig cii cil cio cir cis cl- clc cle clg cli cll clo clr cls co- coc coe cog coi col coo cor cos crc cre crg cri crl cro crr crs csc cse csg csi csl cso csr css ec- ecc ece ecg eci ecl eco ecr ecs eec eee eeg eel eeo eer ees egc ege egg egi egl ego egr egs eic eie eig eii eil eio eir eis elc ele elg eli ell elo elr els eo- eoc eoe eog eoi eol eoo eor eos erc ere erg eri erl ero err ers es- esc ese esg esi esl eso esr ess gcc gce gcg gci gcl gco gcr gcs ge- gec gee geg gei gel geo ger ges ggc ggg ggi ggo ggr ggs gic gie gig gii gil gio gir gis glc gle glg gli gll glo glr gls goc goe gog goi gol goo gor gos grc gre grg gri grl gro grr grs gsc gse gsg gsi gsl gso gsr gss icc ice icg ici icl ico icr ics ie- iec iee ieg iei iel ier ies igc ige igg igi igl igo igr igs iic iie iii iil iio iir iis il- ilc ile ilg ili ill ilo ilr ils io- ioc ioe iog ioi iol ioo ior ios ir- irc ire irg iri irl iro irr irs is- isc ise isg isi isl iso isr iss lcc lce lcg lci lcl lco lcr lcs lec lee leg lei lel leo ler les lgc lge lgg lgi lgl lgo lgr lgs lic lie lig lii lil lio lir lis llc lle llg lli lll llo llr lls loc loe log loi lol loo lor los lrc lrg lri lro lrr lrs lsc lse lsg lsi lsl lso lsr lss o-i oc- occ ocg oci ocl oco ocr ocs oec oee oeg oei oel oeo oer oes ogc oge ogg ogi ogl ogo ogs oic oie oii oil oio oir ois olc ole olg oli oll olo ols oo- ooc oog ooi ool ooo oor oos or- orc ore org ori orl oro orr ors os- osc ose osg osi osl oso osr oss rcc rce rcg rci rcl rco rcr rcs re- rec ree reg rei rel reo rer res rgc rge rgg rgi rgo rgr rgs ric rie rig rii ril rio rir ris rlc rle rlg rli rll rlo rlr rls roc roe rog roi rol roo ror ros rrc rrg rri rrl rrr rrs rsc rse rsg rsi rsl rso rsr rss scc sce scg sci scl sco scr scs se- sec see seg sei sel seo ser ses sgc sge sgg sgi sgl sgo sgr sgs sic sie sig sii sil sio sir sis slc sle slg sli sll slo slr sls soc soe sog soi sol soo sor sos sr- src sre srg sri srl sro srr srs ss- ssc sse ssg ssi ssl sso ssr sss