eeee eeke eheh eher ehre ekek eker ekpe epee eper eph- eppp eprp erer erke erpe erre heek heep heer hehe heke hepe hepp here herk herp herr hhhh hppe hree hrpp keeh keek keep keer kehk kehr keke kep- kepe keph ker- kere kerk kerp kerr khep kher khhk khke khkk khkr khpe khpr khrk khrr kkhh kkhk kkhr kkkk kkpk kkre kkrh kkrk kkrr kpek kper kphp kphr kpke kpkk kpkr kppk kppp kppr kpre kprh kprk kprp kprr kree kreh krek krhp krke krkh krkk krkr krph krpr krre krrk krrr peek peep peer pehe pehr peke pekk pepe per- pere perh perk perp perr phe- phek phrr pper pppp pre- pree prek prep reek reep rehe reke repe repp repr rere rhee rrrr