-er -ol c-- ccc cce ccg ccl cco ccr ccs ccu ce- cec cee ceg cel ceo cer ces ceu cgc cge cgg cgl cgo cgr cgs cgu cl- clc cle clg cll clo clr cls clu co- coc coe cog col coo cor cos cou crc cre crg crl cro crr crs cru csc cse csg csl cso csr css csu cuc cue cug cul cuo cur cus cuu ec- ecc ece ecg ecl eco ecr ecs ecu eec eee eeg eel eeo eer ees egc ege egg egl ego egr egs egu elc ele elg ell elo elr els elu eo- eoc eoe eog eol eoo eor eos eou erc ere erg erl ero err ers eru es- esc ese esg esl eso esr ess esu eu- euc eue eug eul eur eus gcc gce gcg gcl gco gcr gcs gcu ge- gec gee geg gel geo ger ges geu ggc ggg ggo ggr ggs ggu glc gle glg gll glo glr gls glu goc goe gog gol goo gor gos gou grc gre grg grl gro grr grs gru gsc gse gsg gsl gso gsr gss gsu gu- guc gue gug gul guo gur gus guu lcc lce lcg lcl lco lcr lcs lcu lec lee leg lel leo ler les leu lgc lge lgg lgl lgo lgr lgs lgu llc lle llg lll llo llr lls llu loc loe log lol loo lor los lou lrc lrg lro lrr lrs lru lsc lse lsg lsl lso lsr lss lsu luc lue lug lul luo lur lus luu oc- occ ocg ocl oco ocr ocs ocu oec oee oeg oel oeo oer oes ogc oge ogg ogl ogo ogs olc ole olg oll olo ols olu oo- ooc oog ool ooo oor oos or- orc ore org orl oro orr ors oru os- osc ose osg osl oso osr oss osu ou- ouc oue oul ouo our ous rcc rce rcg rcl rco rcr rcs rcu re- rec ree reg rel reo rer res reu rgc rge rgg rgo rgr rgs rlc rle rlg rll rlo rlr rls rlu roc roe rog rol roo ror ros rou rrc rrg rrl rrr rrs rru rsc rse rsg rsl rso rsr rss rsu ruc rue rug ruo rur rus ruu scc sce scg scl sco scr scs scu se- sec see seg sel seo ser ses seu sgc sge sgg sgl sgo sgr sgs sgu slc sle slg sll slo slr sls slu soc soe sog sol soo sor sos sou sr- src sre srg srl sro srr srs ss- ssc sse ssg ssl sso ssr sss ssu suc sue sug sul suo sur sus suu ucc uce ucg ucl uco ucr ucs ucu uec uee ueg uel uer ues ugc uge ugg ugl ugo ugr ugs ugu ulc ule ulg ull ulo ulr uls ulu uoc uoe uog uol uoo uor uos ur- urc ure urg url uro urr urs uru usc use usg usl uso usr uss usu uuc uue uug uur uus uuu