-er -ey c-- ccc cce ccg ccr ccu ce- cec cee ceg cer ceu cey cgc cge cgg cgr cgu cgy crc cre crg crr cru cry cuc cue cug cur cuu cuy cyc cye cyg cyr ec- ecc ece ecg ecr ecu eec eee eeg eer eey egc ege egg egr egu egy erc ere erg err eru ery eu- euc eue eug eur eyc eye eyr gcc gce gcg gcr gcu ge- gec gee geg ger geu gey ggc ggg ggr ggu grc gre grg grr gru gry gu- guc gue gug gur guu guy gy- gye gyr rcc rce rcg rcr rcu re- rec ree reg rer reu rey rgc rge rgg rgr rrc rrg rrr rru ruc rue rug rur ruu ruy ry- ryc rye ryg ryr ryu ryy ucc uce ucg ucr ucu uec uee ueg uer uey ugc uge ugg ugr ugu ur- urc ure urg urr uru ury uuc uue uug uur uuu uyc uyu ycc yce ycu ycy yec yee yeg yer yey ygc yrc yre yrg yru yue yug yur yuu yuy yyc yye yyg yyu yyy