-er -ey c-- ccc cce ccg ccn cco ccr ce- cec cee ceg cen ceo cer cey cgc cge cgg cgn cgo cgr cgy cn- cnc cne cng cnn cno cnr cny co- coc coe cog con coo cor coy crc cre crg crn cro crr cry cyc cye cyg cyn cyo cyr ec- ecc ece ecg ecn eco ecr eec eee eeg een eeo eer eey egc ege egg egn ego egr egy en- enc ene eng enn eno enr eny eo- eoc eoe eog eon eoo eor erc ere erg ern ero err ery eyc eye eyn eyo eyr gcc gce gcg gcn gco gcr ge- gec gee geg gen geo ger gey ggc ggg ggn ggo ggr gnc gne gnn gno gnr goc goe gog gon goo gor goy grc gre grg grn gro grr gry gy- gye gyn gyo gyr ncc nce ncg ncn nco ncr ne- nec nee neg nen neo ner ney ngc nge ngg ngn ngo nnc nne nng nnn nno no- noc noe nog non noo nor noy nrc nre nrg nrn nro nrr nry nyc nye nyg nyn nyo nyy oc- occ ocg ocn oco ocr oec oee oeg oen oeo oer oey ogc oge ogg ogn ogo ogy on- onc one ong onn ono onr ony oo- ooc oog oon ooo oor or- orc ore org orn oro orr ory oye oyo rcc rce rcg rcn rco rcr re- rec ree reg ren reo rer rey rgc rge rgg rgn rgo rgr rnc rng rnn rno rnr rny roc roe rog ron roo ror roy rrc rrg rrn rrr ry- ryc rye ryg ryn ryo ryr ryy ycc yce yco ycy yec yee yeg yen yeo yer yey ygc ygo yne yng ynn yny yoc yoe yog yon yoo yor yoy yrc yre yrg yrn yro yyc yye yyg yyy