-er -ol c-- c-j ccc cce ccj cck ccl cco ccr ce- cec cee cej cek cel ceo cer cjc cjk cjr ckc cko cl- clc cle clj clk cll clo clr co- coc coe coj cok col coo cor crc cre crj crk crl cro crr ec- ecc ece ecj eck ecl eco ecr eec eee eek eel eeo eer ejc ejl ejo ekc eke ekl eko ekr elc ele elk ell elo elr eo- eoc eoe eok eol eoo eor erc ere erk erl ero err jcc jce jck jcl jco jcr jec jee jej jek jel jeo jer jjc jjj jjk jjl jjr jkk jkl jko jkr jlc jle jll jlo jlr joc joe joj jok jol joo jor jrc jrk jrl jro jrr kcc kce kck kcl kcr ke- kec kee kek kel keo ker kjc kje kjr kkc kke kkk kkl kkr kl- klc klo klr koc koe kok kol koo kor krc krk krl kro krr lcc lce lcj lck lcl lco lcr lec lee lej lek lel leo ler lje ljj lkl lkr llc lle llj llk lll llo llr loc loe loj lok lol loo lor lrc lrk lro lrr oc- occ ocj ock ocl oco ocr oec oee oel oeo oer ojc oje ojo okc oke okj okk okl oko okr olc ole olk oll olo oo- ooc ook ool ooo oor or- orc ore ork orl oro orr rcc rce rcj rcl rco rcr re- rec ree rek rel reo rer rjc rjk rjr rkc rke rkk rko rlc rle rll rlo rlr roc roe roj rok rol roo ror rrc rrk rrl rrr