-er c-- ccc cce cch ccm cco ccp ccr ce- cec cee ceh cem ceo cep cer ch- chc che chh chm cho chp chr cmc cme cmh cmm cmo cmp cmr co- coc coe coh com coo cop cor cpc cpe cph cpm cpo cpp cpr crc cre crh crm cro crp crr ec- ecc ece ech ecm eco ecr eec eee eem eeo eep eer ehc ehe ehh ehm eho ehp ehr em- emc eme emh emm emo emp emr eo- eoc eoe eoh eom eoo eop eor ep- epc epe eph epm epo epp epr erc ere erh erm ero erp err hcc hce hch hcm hco hcp hcr he- hec hee heh hem heo hep her hhc hhe hhh hhm hho hhp hhr hmc hme hmh hmm hmo hmp hmr hoc hoe hoh hom hoo hop hor hpc hpe hph hpm hpo hpp hpr hr- hrc hre hrh hrm hro hrp hrr m-o m-r mc- mcc mce mch mcm mco mcp mcr mec mee meh mem meo mep mer mhc mhh mhm mho mhp mhr mmc mme mmh mmm mmo mmp mmr moc moe moh mom moo mop mor mpc mpe mph mpm mpo mpp mpr mrc mre mrh mrm mro mrp mrr oc- occ och ocm oco ocp ocr oec oee oeh oem oeo oep oer ohc ohe ohh ohm oho ohp ohr om- omc ome omh omm omo omp omr oo- ooc ooh oom ooo oop oor op- opc ope oph opm opo opp opr or- orc ore orh orm oro orp orr p-p pcc pce pch pcm pco pcp pcr pec pee peh pem peo pep per phc phe phm pho php phr pmc pme pmh pmm pmo pmp pmr poc poe poh pom poo pop por ppc ppe pph ppm ppo ppp ppr prc pre prh prm pro prp prr rcc rce rch rcm rco rcp rcr re- rec ree reh rem reo rep rer rh- rhc rhe rhh rhm rho rhp rhr rmc rme rmh rmm rmo rmp rmr roc roe roh rom roo rop ror rpc rpe rph rpm rpo rpp rpr rrc rrh rrm rrp rrr