-er -ic -ol c-- ccc cce cci cck ccl cco ccr ce- cec cee cei cek cel ceo cer ci- cic cie cii cik cil cio cir ckc cki cko cl- clc cle cli clk cll clo clr co- coc coe coi cok col coo cor crc cre cri crk crl cro crr ec- ecc ece eci eck ecl eco ecr eec eee eek eel eeo eer eic eie eii eik eil eio eir ekc eke eki ekl eko ekr elc ele eli elk ell elo elr eo- eoc eoe eoi eok eol eoo eor erc ere eri erk erl ero err icc ice ici ick icl ico icr ie- iec iee iei iek iel ier iic iie iii iil iio iir ikc ike iki ikk ikl iko ikr il- ilc ile ili ilk ill ilo ilr io- ioc ioe ioi iol ioo ior ir- irc ire iri irk irl iro irr kcc kce kci kck kcl kcr ke- kec kee kei kek kel keo ker kic kie kii kik kil kio kir kkc kke kki kkk kkl kkr kl- klc kli klo klr koc koe koi kok kol koo kor krc kri krk krl kro krr lcc lce lci lck lcl lco lcr lec lee lei lek lel leo ler lic lie lii lik lil lio lir lkl lkr llc lle lli llk lll llo llr loc loe loi lok lol loo lor lrc lri lrk lro lrr o-i oc- occ oci ock ocl oco ocr oec oee oei oel oeo oer oic oie oii oik oil oio oir okc oke oki okk okl oko okr olc ole oli olk oll olo oo- ooc ooi ook ool ooo oor or- orc ore ori ork orl oro orr rcc rce rci rcl rco rcr re- rec ree rei rek rel reo rer ric rie rii rik ril rio rir rkc rke rkk rko rlc rle rli rll rlo rlr roc roe roi rok rol roo ror rrc rri rrk rrl rrr