-er eee eem eep eer ehe ehh ehm ehp ehr em- eme emh emm emp emr ep- epe eph epm epp epr ere erh erm erp err he- hee heh hem hep her hhe hhh hhm hhp hhr hme hmh hmm hmp hmr hpe hph hpm hpp hpr hr- hre hrh hrm hrp hrr m-r mee meh mem mep mer mhh mhm mhp mhr mme mmh mmm mmp mmr mpe mph mpm mpp mpr mre mrh mrm mrp mrr p-p pee peh pem pep per phe phm php phr pme pmh pmm pmp pmr ppe pph ppm ppp ppr pre prh prm prp prr re- ree reh rem rep rer rh- rhe rhh rhm rhp rhr rme rmh rmm rmp rmr rpe rph rpm rpp rpr rrh rrm rrp rrr