-er -ey -ic c-- ccc cce cci cco ccr ce- cec cee cei ceo cer cey ci- cic cie cii cio cir co- coc coe coi coo cor coy crc cre cri cro crr cry cyc cye cyo cyr ec- ecc ece eci eco ecr eec eee eeo eer eey eic eie eii eio eir eo- eoc eoe eoi eoo eor erc ere eri ero err ery eyc eye eyo eyr icc ice ici ico icr icy ie- iec iee iei ier iey iic iie iii iio iir io- ioc ioe ioi ioo ior ir- irc ire iri iro irr iry iyc iye iyo iyr iyy o-i oc- occ oci oco ocr oec oee oei oeo oer oey oic oie oii oio oir oo- ooc ooi ooo oor or- orc ore ori oro orr ory oye oyi oyo rcc rce rci rco rcr re- rec ree rei reo rer rey ric rie rii rio rir riy roc roe roi roo ror roy rrc rri rrr ry- ryc rye ryo ryr ryy ycc yce yci yco ycy yec yee yei yeo yer yey yie yii yio yir yoc yoe yoi yoo yor yoy yrc yre yro yyc yye yyy