-er -ey c-- ccc cce cco ccr ccz ce- cec cee ceo cer cey cez co- coc coe coo cor coy coz crc cre cro crr cry crz cyc cye cyo cyr cz- czc cze czo ec- ecc ece eco ecr eec eee eeo eer eey eo- eoc eoe eoo eor erc ere ero err ery erz eyc eye eyo eyr eze ezo ezr ezz oc- occ oco ocr ocz oec oee oeo oer oey oo- ooc ooo oor or- orc ore oro orr ory orz oye oyo oze ozo ozz rcc rce rco rcr re- rec ree reo rer rey rez roc roe roo ror roy roz rrc rrr ry- ryc rye ryo ryr ryy ryz rze rzo rzy ycc yce yco ycy yec yee yeo yer yey yez yoc yoe yoo yor yoy yrc yre yro yyc yye yyy yyz yzr yzy zce zco zec zee zeo zer zez zo- zoc zoe zoo zor zro zzr zzy zzz