-er -ol c-- ccc cce ccf ccl cco ccp ccr ccs ce- cec cee cef cel ceo cep cer ces cfc cfe cff cfl cfo cfp cfr cfs cl- clc cle clf cll clo clp clr cls co- coc coe cof col coo cop cor cos cpc cpe cpf cpl cpo cpp cpr cps crc cre crf crl cro crp crr crs csc cse csf csl cso csp csr css ec- ecc ece ecf ecl eco ecr ecs eec eee eef eel eeo eep eer ees ef- efc efe eff efl efo efp efr efs elc ele elf ell elo elp elr els eo- eoc eoe eof eol eoo eop eor eos ep- epc epe epf epl epo epp epr eps erc ere erf erl ero erp err ers es- esc ese esf esl eso esp esr ess fcc fce fcf fcl fco fcp fcr fcs fec fee fef fel feo fep fer fes ffc ffe fff ffl ffo ffp ffr ffs flc fle flf fll flo flp flr fls foc foe fof fol foo fop for fos fpc fpe fpl fpo fpp fpr fps frc fre frf frl fro frp frr frs fsc fse fsf fsl fso fsp fsr fss l-p lcc lce lcf lcl lco lcp lcr lcs lec lee lef lel leo lep ler les lfc lfe lff lfl lfo lfp lfr lfs llc lle llf lll llo llp llr lls loc loe lof lol loo lop lor los lpc lpe lpf lpl lpo lpp lpr lps lrc lrf lro lrp lrr lrs lsc lse lsf lsl lso lsp lsr lss oc- occ ocf ocl oco ocp ocr ocs oec oee oef oel oeo oep oer oes of- ofc ofe off ofl ofo ofp ofr ofs olc ole olf oll olo olp ols oo- ooc oof ool ooo oop oor oos op- opc ope opf opl opo opp opr ops or- orc ore orf orl oro orp orr ors os- osc ose osf osl oso osp osr oss p-p pcc pce pcf pcl pco pcp pcr pcs pec pee pef pel peo pep per pes pfc pfe pff pfl pfo pfp pfr pfs plc ple plf pll plo plp plr pls poc poe pof pol poo pop por pos ppc ppe ppf ppl ppo ppp ppr pps prc pre prf prl pro prp prr prs ps- psc pse psf psl pso psp psr pss rcc rce rcf rcl rco rcp rcr rcs re- rec ree ref rel reo rep rer res rfc rfe rff rfl rfo rfp rfr rfs rlc rle rlf rll rlo rlp rlr rls roc roe rof rol roo rop ror ros rpc rpe rpf rpl rpo rpp rpr rps rrc rrf rrl rrp rrr rrs rsc rse rsf rsl rso rsp rsr rss scc sce scf scl sco scp scr scs se- sec see sef sel seo sep ser ses sfc sfe sff sfl sfo sfp sfr sfs slc sle slf sll slo slp slr sls soc soe sof sol soo sop sor sos spc spe spf spl spo spp spr sps sr- src sre srf srl sro srp srr srs ss- ssc sse ssf ssl sso ssp ssr sss