-er -ol c-- ccc cce cch ccl ccm cco ccr ccx ce- cec cee ceh cel cem ceo cer cex ch- chc che chh chl chm cho chr chx cl- clc cle clh cll clm clo clr clx cmc cme cmh cml cmm cmo cmr cmx co- coc coe coh col com coo cor cox crc cre crh crl crm cro crr crx cxc cxh cxl cxo cxr cxx ec- ecc ece ech ecl ecm eco ecr ecx eec eee eel eem eeo eer eex ehc ehe ehh ehl ehm eho ehr elc ele elh ell elm elo elr elx em- emc eme emh eml emm emo emr emx eo- eoc eoe eoh eol eom eoo eor erc ere erh erl erm ero err ex- exc exe exh exl exo exr exx hcc hce hch hcl hcm hco hcr he- hec hee heh hel hem heo her hex hhc hhe hhh hhl hhm hho hhr hlc hle hlh hll hlm hlo hlr hlx hmc hme hmh hml hmm hmo hmr hmx hoc hoe hoh hol hom hoo hor hox hr- hrc hre hrh hrl hrm hro hrr hxc hxl hxm lcc lce lch lcl lcm lco lcr lcx lec lee leh lel lem leo ler lex lhc lhh lho lhr lhx llc lle lll llm llo llr lmc lme lmh lml lmm lmo lmr loc loe loh lol lom loo lor lox lrc lrh lrm lro lrr lxc lxo lxr lxx m-o m-r mc- mcc mce mch mcl mcm mco mcr mcx mec mee meh mel mem meo mer mex mhc mhh mhl mhm mho mhr mhx mlc mle mlh mll mlm mlo mlr mlx mmc mme mmh mml mmm mmo mmr mmx moc moe moh mol mom moo mor mox mrc mre mrh mrl mrm mro mrr mrx mxc mxl mxr oc- occ och ocl ocm oco ocr ocx oec oee oeh oel oem oeo oer oex ohc ohe ohh ohl ohm oho ohr olc ole oll olm olo om- omc ome omh oml omm omo omr omx oo- ooc ooh ool oom ooo oor oox or- orc ore orh orl orm oro orr orx ox- oxc oxo oxx rcc rce rch rcl rcm rco rcr rcx re- rec ree reh rel rem reo rer rex rh- rhc rhe rhh rhl rhm rho rhr rlc rle rlh rll rlm rlo rlr rmc rme rmh rml rmm rmo rmr rmx roc roe roh rol rom roo ror rox rrc rrh rrl rrm rrr rxr xch xcl xcr xcx xee xel xem xer xex xlm xlr xmc xmh xml xmm xmo xmr xmx xoc xom xoo xor xox xrc xrx xxl xxo xxx