-er -ol c-- ccc cce ccg ccl cco ccr ce- cec cee ceg cel ceo cer cgc cge cgg cgl cgo cgr cl- clc cle clg cll clo clr co- coc coe cog col coo cor crc cre crg crl cro crr ec- ecc ece ecg ecl eco ecr eec eee eeg eel eeo eer egc ege egg egl ego egr elc ele elg ell elo elr eo- eoc eoe eog eol eoo eor erc ere erg erl ero err gcc gce gcg gcl gco gcr ge- gec gee geg gel geo ger ggc ggg ggo ggr glc gle glg gll glo glr goc goe gog gol goo gor grc gre grg grl gro grr lcc lce lcg lcl lco lcr lec lee leg lel leo ler lgc lge lgg lgl lgo lgr llc lle llg lll llo llr loc loe log lol loo lor lrc lrg lro lrr oc- occ ocg ocl oco ocr oec oee oeg oel oeo oer ogc oge ogg ogl ogo olc ole olg oll olo oo- ooc oog ool ooo oor or- orc ore org orl oro orr rcc rce rcg rcl rco rcr re- rec ree reg rel reo rer rgc rge rgg rgo rgr rlc rle rlg rll rlo rlr roc roe rog rol roo ror rrc rrg rrl rrr