-er -ol c-- ccc cce ccg ccl cco ccr ccv ce- cec cee ceg cel ceo cer cev cgc cge cgg cgl cgo cgr cgv cl- clc cle clg cll clo clr clv co- coc coe cog col coo cor cov crc cre crg crl cro crr crv cvc cve cvg cvl cvo cvr cvv ec- ecc ece ecg ecl eco ecr ecv eec eee eeg eel eeo eer eev egc ege egg egl ego egr elc ele elg ell elo elr elv eo- eoc eoe eog eol eoo eor erc ere erg erl ero err erv evc eve evg evl evo evr evv gcc gce gcg gcl gco gcr ge- gec gee geg gel geo ger gev ggc ggg ggo ggr ggv glc gle glg gll glo glr glv goc goe gog gol goo gor gov grc gre grg grl gro grr grv gvc gve gvg gvl gvo gvr lcc lce lcg lcl lco lcr lcv lec lee leg lel leo ler lev lgc lge lgg lgl lgo lgr lgv llc lle llg lll llo llr llv loc loe log lol loo lor lov lrc lrg lro lrr lrv lvc lve lvg lvl lvr lvv oc- occ ocg ocl oco ocr ocv oec oee oeg oel oeo oer ogc oge ogg ogl ogo olc ole olg oll olo oo- ooc oog ool ooo oor oov or- orc ore org orl oro orr orv ov- ovc ove ovl ovo ovv rcc rce rcg rcl rco rcr rcv re- rec ree reg rel reo rer rev rgc rge rgg rgo rgr rgv rlc rle rlg rll rlo rlr roc roe rog rol roo ror rov rrc rrg rrl rrr rvc rve rvg rvl rvo rvr rvv v-e vcc vce vcl vco vcr vec vee veg vel veo ver vgc vgg vgl vgo vgr vl- vlc vle vll vlo vlv voc voe vog vol voo vor vov vrc vre vrg vrr vvc vvg vvo vvr vvv