-er -ey c-- ccc cce ccg cco ccp ccr ccz ce- cec cee ceg ceo cep cer cey cez cgc cge cgg cgo cgp cgr cgy co- coc coe cog coo cop cor coy coz cpc cpe cpg cpo cpp cpr cpz crc cre crg cro crp crr cry crz cyc cye cyg cyo cyp cyr cz- czc cze czo ec- ecc ece ecg eco ecr eec eee eeg eeo eep eer eey egc ege egg ego egp egr egy eo- eoc eoe eog eoo eop eor ep- epc epe epg epo epp epr epz erc ere erg ero erp err ery erz eyc eye eyo eyp eyr eze ezo ezr ezz g-p gcc gce gcg gco gcp gcr ge- gec gee geg geo gep ger gey gez ggc ggg ggo ggp ggr ggz goc goe gog goo gop gor goy goz gpc gpe gpg gpo gpp gpr gpz grc gre grg gro grp grr gry gy- gye gyo gyp gyr gzo gzp gzr oc- occ ocg oco ocp ocr ocz oec oee oeg oeo oep oer oey ogc oge ogg ogo ogp ogy oo- ooc oog ooo oop oor op- opc ope opg opo opp opr opy or- orc ore org oro orp orr ory orz oye oyo oze ozo ozz p-p pcc pce pcg pco pcp pcr pec pee peg peo pep per pey pez pgc pge pgg pgo pgp pgr pgy poc poe pog poo pop por poy poz ppc ppe ppg ppo ppp ppr ppz prc pre prg pro prp prr pry prz py- pyc pye pyg pyo pyr pzc pzp rcc rce rcg rco rcp rcr re- rec ree reg reo rep rer rey rez rgc rge rgg rgo rgp rgr roc roe rog roo rop ror roy roz rpc rpe rpg rpo rpp rpr rpz rrc rrg rrp rrr ry- ryc rye ryg ryo ryr ryy ryz rze rzo rzy ycc yce yco ycp ycy yec yee yeg yeo yep yer yey yez ygc ygo yoc yoe yog yoo yop yor yoy ypg ypo yrc yre yrg yro yrp yyc yye yyg yyy yyz yzr yzy z-g zce zco zec zee zeo zep zer zez zgg zo- zoc zoe zog zoo zor zpc zpe zpg zpo zpp zpr zro zrp zzr zzy zzz