-er -ol c-- ccc cce ccg ccl cco ccr ccs cct ce- cec cee ceg cel ceo cer ces cet cgc cge cgg cgl cgo cgr cgs cgt cl- clc cle clg cll clo clr cls clt co- coc coe cog col coo cor cos cot crc cre crg crl cro crr crs crt csc cse csg csl cso csr css cst ctc cte ctg ctl cto ctr cts ctt ec- ecc ece ecg ecl eco ecr ecs ect eec eee eeg eel eeo eer ees eet egc ege egg egl ego egr egs egt elc ele elg ell elo elr els elt eo- eoc eoe eog eol eoo eor eos eot erc ere erg erl ero err ers ert es- esc ese esg esl eso esr ess est etc ete etg etl eto etr ets ett gcc gce gcg gcl gco gcr gcs gct ge- gec gee geg gel geo ger ges get ggc ggg ggo ggr ggs ggt glc gle glg gll glo glr gls glt goc goe gog gol goo gor gos got grc gre grg grl gro grr grs grt gsc gse gsg gsl gso gsr gss gst gtc gte gtg gtl gto gtr gts gtt lcc lce lcg lcl lco lcr lcs lct lec lee leg lel leo ler les let lgc lge lgg lgl lgo lgr lgs lgt llc lle llg lll llo llr lls llt loc loe log lol loo lor los lot lrc lrg lro lrr lrs lrt lsc lse lsg lsl lso lsr lss lst ltc lte ltg ltl lto ltr lts ltt oc- occ ocg ocl oco ocr ocs oct oec oee oeg oel oeo oer oes oet ogc oge ogg ogl ogo ogs ogt olc ole olg oll olo ols olt oo- ooc oog ool ooo oor oos oot or- orc ore org orl oro orr ors ort os- osc ose osg osl oso osr oss ost ot- otc ote otg otl oto otr ots ott rcc rce rcg rcl rco rcr rcs rct re- rec ree reg rel reo rer res ret rgc rge rgg rgo rgr rgs rgt rlc rle rlg rll rlo rlr rls rlt roc roe rog rol roo ror ros rot rrc rrg rrl rrr rrs rrt rsc rse rsg rsl rso rsr rss rst rtc rte rtg rtl rto rtr rts rtt scc sce scg scl sco scr scs sct se- sec see seg sel seo ser ses set sgc sge sgg sgl sgo sgr sgs sgt slc sle slg sll slo slr sls slt soc soe sog sol soo sor sos sot sr- src sre srg srl sro srr srs srt ss- ssc sse ssg ssl sso ssr sss sst stc ste stg stl sto str sts stt tcc tce tcg tcl tco tcr tcs tct te- tec tee teg tel teo ter tes tet tgc tge tgg tgl tgo tgr tgs tgt tlc tle tlg tll tlo tlr tls tlt to- toc toe tog tol too tor tos tot trc tre trg trl tro trr trs trt tsc tse tsg tsl tso tsr tss tst ttc tte ttg ttl tto ttr tts ttt