-er -ol c-- ccc cce ccl ccm cco ccp ccr ccx ce- cec cee cel cem ceo cep cer cex cl- clc cle cll clm clo clp clr clx cmc cme cml cmm cmo cmp cmr cmx co- coc coe col com coo cop cor cox cpc cpe cpl cpm cpo cpp cpr cpx crc cre crl crm cro crp crr crx cxc cxl cxo cxp cxr cxx ec- ecc ece ecl ecm eco ecr ecx eec eee eel eem eeo eep eer eex elc ele ell elm elo elp elr elx em- emc eme eml emm emo emp emr emx eo- eoc eoe eol eom eoo eop eor ep- epc epe epl epm epo epp epr epx erc ere erl erm ero erp err ex- exc exe exl exo exp exr exx l-p lcc lce lcl lcm lco lcp lcr lcx lec lee lel lem leo lep ler lex llc lle lll llm llo llp llr lmc lme lml lmm lmo lmp lmr loc loe lol lom loo lop lor lox lpc lpe lpl lpm lpo lpp lpr lpx lrc lrm lro lrp lrr lxc lxo lxr lxx m-o m-r mc- mcc mce mcl mcm mco mcp mcr mcx mec mee mel mem meo mep mer mex mlc mle mll mlm mlo mlp mlr mlx mmc mme mml mmm mmo mmp mmr mmx moc moe mol mom moo mop mor mox mpc mpe mpl mpm mpo mpp mpr mpx mrc mre mrl mrm mro mrp mrr mrx mxc mxl mxp mxr oc- occ ocl ocm oco ocp ocr ocx oec oee oel oem oeo oep oer oex olc ole oll olm olo olp om- omc ome oml omm omo omp omr omx oo- ooc ool oom ooo oop oor oox op- opc ope opl opm opo opp opr opx or- orc ore orl orm oro orp orr orx ox- oxc oxo oxx p-p pcc pce pcl pcm pco pcp pcr pcx pec pee pel pem peo pep per pex plc ple pll plm plo plp plr plx pmc pme pml pmm pmo pmp pmr pmx poc poe pol pom poo pop por pox ppc ppe ppl ppm ppo ppp ppr ppx prc pre prl prm pro prp prr prx pxc pxe pxl pxm pxr rcc rce rcl rcm rco rcp rcr rcx re- rec ree rel rem reo rep rer rex rlc rle rll rlm rlo rlp rlr rmc rme rml rmm rmo rmp rmr rmx roc roe rol rom roo rop ror rox rpc rpe rpl rpm rpo rpp rpr rpx rrc rrl rrm rrp rrr rxp rxr xcl xcp xcr xcx xee xel xem xep xer xex xlm xlr xmc xml xmm xmo xmp xmr xmx xoc xom xoo xop xor xox xpc xpe xpl xpm xpo xpp xrc xrx xxl xxo xxp xxx