-er -ey c-- ccc cce cco ccp ccr ccz ce- cec cee ceo cep cer cey cez co- coc coe coo cop cor coy coz cpc cpe cpo cpp cpr cpz crc cre cro crp crr cry crz cyc cye cyo cyp cyr cz- czc cze czo ec- ecc ece eco ecr eec eee eeo eep eer eey eo- eoc eoe eoo eop eor ep- epc epe epo epp epr epz erc ere ero erp err ery erz eyc eye eyo eyp eyr eze ezo ezr ezz oc- occ oco ocp ocr ocz oec oee oeo oep oer oey oo- ooc ooo oop oor op- opc ope opo opp opr opy or- orc ore oro orp orr ory orz oye oyo oze ozo ozz p-p pcc pce pco pcp pcr pec pee peo pep per pey pez poc poe poo pop por poy poz ppc ppe ppo ppp ppr ppz prc pre pro prp prr pry prz py- pyc pye pyo pyr pzc pzp rcc rce rco rcp rcr re- rec ree reo rep rer rey rez roc roe roo rop ror roy roz rpc rpe rpo rpp rpr rpz rrc rrp rrr ry- ryc rye ryo ryr ryy ryz rze rzo rzy ycc yce yco ycp ycy yec yee yeo yep yer yey yez yoc yoe yoo yop yor yoy ypo yrc yre yro yrp yyc yye yyy yyz yzr yzy zce zco zec zee zeo zep zer zez zo- zoc zoe zoo zor zpc zpe zpo zpp zpr zro zrp zzr zzy zzz