-er -ey c-- ccc cce ccn cco ccr cct ce- cec cee cen ceo cer cet cey cn- cnc cne cnn cno cnr cnt cny co- coc coe con coo cor cot coy crc cre crn cro crr crt cry ctc cte ctn cto ctr ctt cty cyc cye cyn cyo cyr cyt ec- ecc ece ecn eco ecr ect eec eee een eeo eer eet eey en- enc ene enn eno enr ent eny eo- eoc eoe eon eoo eor eot erc ere ern ero err ert ery etc ete etn eto etr ett ety eyc eye eyn eyo eyr eyt ncc nce ncn nco ncr nct ne- nec nee nen neo ner net ney nnc nne nnn nno nnt no- noc noe non noo nor not noy nrc nre nrn nro nrr nrt nry ntc nte ntn nto ntr ntt nyc nye nyn nyo nyt nyy oc- occ ocn oco ocr oct oec oee oen oeo oer oet oey on- onc one onn ono onr ont ony oo- ooc oon ooo oor oot or- orc ore orn oro orr ort ory ot- otc ote otn oto otr ott oye oyo rcc rce rcn rco rcr rct re- rec ree ren reo rer ret rey rnc rnn rno rnr rnt rny roc roe ron roo ror rot roy rrc rrn rrr rrt rtc rte rtn rto rtr rtt rty ry- ryc rye ryn ryo ryr ryy tcc tce tcn tco tcr tct te- tec tee ten teo ter tet tey tnc tne tnn tno tnr tnt to- toc toe ton too tor tot toy trc tre trn tro trr trt try ttc tte ttn tto ttr ttt tty tyc tye tyn tyo tyr tyt ycc yce yco ycy yec yee yen yeo yer yet yey yne ynn yny yoc yoe yon yoo yor yot yoy yrc yre yrn yro yrt ytc yte ytn yto ytr ytt yyc yye yyt yyy