-er -ol c-- ccc cce ccg ccl ccn cco ccr ccu ce- cec cee ceg cel cen ceo cer ceu cgc cge cgg cgl cgn cgo cgr cgu cl- clc cle clg cll cln clo clr clu cn- cnc cne cng cnl cnn cno cnr cnu co- coc coe cog col con coo cor cou crc cre crg crl crn cro crr cru cuc cue cug cul cun cuo cur cuu ec- ecc ece ecg ecl ecn eco ecr ecu eec eee eeg eel een eeo eer egc ege egg egl egn ego egr egu elc ele elg ell eln elo elr elu en- enc ene eng enl enn eno enr enu eo- eoc eoe eog eol eon eoo eor eou erc ere erg erl ern ero err eru eu- euc eue eug eul eun eur gcc gce gcg gcl gcn gco gcr gcu ge- gec gee geg gel gen geo ger geu ggc ggg ggn ggo ggr ggu glc gle glg gll gln glo glr glu gnc gne gnl gnn gno gnr gnu goc goe gog gol gon goo gor gou grc gre grg grl grn gro grr gru gu- guc gue gug gul gun guo gur guu lcc lce lcg lcl lcn lco lcr lcu lec lee leg lel len leo ler leu lgc lge lgg lgl lgn lgo lgr lgu llc lle llg lll lln llo llr llu lnc lne lng lnl lnn lno lnr lnu loc loe log lol lon loo lor lou lrc lrg lrn lro lrr lru luc lue lug lul lun luo lur luu ncc nce ncg ncl ncn nco ncr ncu ne- nec nee neg nel nen neo ner neu ngc nge ngg ngl ngn ngo ngu nlc nle nlg nll nln nlo nlr nlu nnc nne nng nnl nnn nno nnu no- noc noe nog nol non noo nor nou nrc nre nrg nrl nrn nro nrr nru nuc nue nug nul nun nuo nur nuu oc- occ ocg ocl ocn oco ocr ocu oec oee oeg oel oen oeo oer ogc oge ogg ogl ogn ogo olc ole olg oll oln olo olu on- onc one ong onl onn ono onr onu oo- ooc oog ool oon ooo oor or- orc ore org orl orn oro orr oru ou- ouc oue oul oun ouo our rcc rce rcg rcl rcn rco rcr rcu re- rec ree reg rel ren reo rer reu rgc rge rgg rgn rgo rgr rlc rle rlg rll rln rlo rlr rlu rnc rng rnn rno rnr rnu roc roe rog rol ron roo ror rou rrc rrg rrl rrn rrr rru ruc rue rug run ruo rur ruu ucc uce ucg ucl ucn uco ucr ucu uec uee ueg uel uen uer ugc uge ugg ugl ugn ugo ugr ugu ulc ule ulg ull uln ulo ulr ulu un- unc une ung unl unn uno unr unu uoc uoe uog uol uon uoo uor ur- urc ure urg url urn uro urr uru uuc uue uug uun uur uuu