-er -ic -ol c-- ccc cce cci ccl cco ccr ccx ce- cec cee cei cel ceo cer cex ci- cic cie cii cil cio cir cix cl- clc cle cli cll clo clr clx co- coc coe coi col coo cor cox crc cre cri crl cro crr crx cxc cxi cxl cxo cxr cxx ec- ecc ece eci ecl eco ecr ecx eec eee eel eeo eer eex eic eie eii eil eio eir eix elc ele eli ell elo elr elx eo- eoc eoe eoi eol eoo eor erc ere eri erl ero err ex- exc exe exi exl exo exr exx icc ice ici icl ico icr ie- iec iee iei iel ier iex iic iie iii iil iio iir iix il- ilc ile ili ill ilo ilr ilx io- ioc ioe ioi iol ioo ior ir- irc ire iri irl iro irr irx ixc ixe ixi ixl lcc lce lci lcl lco lcr lcx lec lee lei lel leo ler lex lic lie lii lil lio lir lix llc lle lli lll llo llr loc loe loi lol loo lor lox lrc lri lro lrr lxc lxi lxo lxr lxx o-i oc- occ oci ocl oco ocr ocx oec oee oei oel oeo oer oex oic oie oii oil oio oir olc ole oli oll olo oo- ooc ooi ool ooo oor oox or- orc ore ori orl oro orr orx ox- oxc oxi oxo oxx rcc rce rci rcl rco rcr rcx re- rec ree rei rel reo rer rex ric rie rii ril rio rir rix rlc rle rli rll rlo rlr roc roe roi rol roo ror rox rrc rri rrl rrr rxr xci xcl xcr xcx xee xel xer xex xic xie xii xio xix xli xlr xoc xoi xoo xor xox xrc xrx xxi xxl xxo xxx