-er -ic -ol c-- ccc cce cci ccl cco ccr ccs ce- cec cee cei cel ceo cer ces ci- cic cie cii cil cio cir cis cl- clc cle cli cll clo clr cls co- coc coe coi col coo cor cos crc cre cri crl cro crr crs csc cse csi csl cso csr css ec- ecc ece eci ecl eco ecr ecs eec eee eel eeo eer ees eic eie eii eil eio eir eis elc ele eli ell elo elr els eo- eoc eoe eoi eol eoo eor eos erc ere eri erl ero err ers es- esc ese esi esl eso esr ess icc ice ici icl ico icr ics ie- iec iee iei iel ier ies iic iie iii iil iio iir iis il- ilc ile ili ill ilo ilr ils io- ioc ioe ioi iol ioo ior ios ir- irc ire iri irl iro irr irs is- isc ise isi isl iso isr iss lcc lce lci lcl lco lcr lcs lec lee lei lel leo ler les lic lie lii lil lio lir lis llc lle lli lll llo llr lls loc loe loi lol loo lor los lrc lri lro lrr lrs lsc lse lsi lsl lso lsr lss o-i oc- occ oci ocl oco ocr ocs oec oee oei oel oeo oer oes oic oie oii oil oio oir ois olc ole oli oll olo ols oo- ooc ooi ool ooo oor oos or- orc ore ori orl oro orr ors os- osc ose osi osl oso osr oss rcc rce rci rcl rco rcr rcs re- rec ree rei rel reo rer res ric rie rii ril rio rir ris rlc rle rli rll rlo rlr rls roc roe roi rol roo ror ros rrc rri rrl rrr rrs rsc rse rsi rsl rso rsr rss scc sce sci scl sco scr scs se- sec see sei sel seo ser ses sic sie sii sil sio sir sis slc sle sli sll slo slr sls soc soe soi sol soo sor sos sr- src sre sri srl sro srr srs ss- ssc sse ssi ssl sso ssr sss