-er -ol c-- ccc cce ccg ccl ccn cco ccr ce- cec cee ceg cel cen ceo cer cgc cge cgg cgl cgn cgo cgr cl- clc cle clg cll cln clo clr cn- cnc cne cng cnl cnn cno cnr co- coc coe cog col con coo cor crc cre crg crl crn cro crr ec- ecc ece ecg ecl ecn eco ecr eec eee eeg eel een eeo eer egc ege egg egl egn ego egr elc ele elg ell eln elo elr en- enc ene eng enl enn eno enr eo- eoc eoe eog eol eon eoo eor erc ere erg erl ern ero err gcc gce gcg gcl gcn gco gcr ge- gec gee geg gel gen geo ger ggc ggg ggn ggo ggr glc gle glg gll gln glo glr gnc gne gnl gnn gno gnr goc goe gog gol gon goo gor grc gre grg grl grn gro grr lcc lce lcg lcl lcn lco lcr lec lee leg lel len leo ler lgc lge lgg lgl lgn lgo lgr llc lle llg lll lln llo llr lnc lne lng lnl lnn lno lnr loc loe log lol lon loo lor lrc lrg lrn lro lrr ncc nce ncg ncl ncn nco ncr ne- nec nee neg nel nen neo ner ngc nge ngg ngl ngn ngo nlc nle nlg nll nln nlo nlr nnc nne nng nnl nnn nno no- noc noe nog nol non noo nor nrc nre nrg nrl nrn nro nrr oc- occ ocg ocl ocn oco ocr oec oee oeg oel oen oeo oer ogc oge ogg ogl ogn ogo olc ole olg oll oln olo on- onc one ong onl onn ono onr oo- ooc oog ool oon ooo oor or- orc ore org orl orn oro orr rcc rce rcg rcl rcn rco rcr re- rec ree reg rel ren reo rer rgc rge rgg rgn rgo rgr rlc rle rlg rll rln rlo rlr rnc rng rnn rno rnr roc roe rog rol ron roo ror rrc rrg rrl rrn rrr