-er -ol c-- ccc cce ccl cco ccr ce- cec cee cel ceo cer cl- clc cle cll clo clr co- coc coe col coo cor crc cre crl cro crr ec- ecc ece ecl eco ecr eec eee eel eeo eer elc ele ell elo elr eo- eoc eoe eol eoo eor erc ere erl ero err lcc lce lcl lco lcr lec lee lel leo ler llc lle lll llo llr loc loe lol loo lor lrc lro lrr oc- occ ocl oco ocr oec oee oel oeo oer olc ole oll olo oo- ooc ool ooo oor or- orc ore orl oro orr rcc rce rcl rco rcr re- rec ree rel reo rer rlc rle rll rlo rlr roc roe rol roo ror rrc rrl rrr