-ol c-- ccc cce ccg cck ccl cco ccs ce- cec cee ceg cek cel ceo ces cgc cge cgg cgl cgo cgs ckc cko cks cl- clc cle clg clk cll clo cls co- coc coe cog cok col coo cos csc cse csg csk csl cso css ec- ecc ece ecg eck ecl eco ecs eec eee eeg eek eel eeo ees egc ege egg egl ego egs ekc eke ekg ekl eko eks elc ele elg elk ell elo els eo- eoc eoe eog eok eol eoo eos es- esc ese esg esk esl eso ess gcc gce gcg gck gcl gco gcs ge- gec gee geg gek gel geo ges ggc ggg ggo ggs gko gks glc gle glg glk gll glo gls goc goe gog gok gol goo gos gsc gse gsg gsk gsl gso gss kcc kce kcg kck kcl kcs ke- kec kee keg kek kel keo kes kgc kgl kgo kgs kkc kke kkk kkl kks kl- klc klg klo kls koc koe kog kok kol koo kos ksc kse ksg ksk ksl kso kss lcc lce lcg lck lcl lco lcs lec lee leg lek lel leo les lgc lge lgg lgk lgl lgo lgs lkg lkl lks llc lle llg llk lll llo lls loc loe log lok lol loo los lsc lse lsg lsk lsl lso lss oc- occ ocg ock ocl oco ocs oec oee oeg oel oeo oes ogc oge ogg ogl ogo ogs okc oke okg okk okl oko oks olc ole olg olk oll olo ols oo- ooc oog ook ool ooo oos os- osc ose osg osk osl oso oss scc sce scg sck scl sco scs se- sec see seg sek sel seo ses sgc sge sgg sgk sgl sgo sgs sk- skc ske skg skk skl sko sks slc sle slg slk sll slo sls soc soe sog sok sol soo sos ss- ssc sse ssg ssk ssl sso sss