-er eee eek eep eer eke ekp ekr ep- epe epp epr ere erk erp err ke- kee kek kep ker kke kkk kkp kkr kpe kpk kpp kpr krk krp krr p-p pee pek pep per pke pkp pkr ppe ppk ppp ppr pre prk prp prr re- ree rek rep rer rke rkk rkp rpe rpk rpp rpr rrk rrp rrr

eeee eeke ekek eker ekpe epee eper eppp eprp erer erke erpe erre keek keep keer keke kep- kepe ker- kere kerk kerp kerr kkkk kkpk kkre kkrk kkrr kpek kper kpke kpkk kpkr kppk kppp kppr kpre kprk kprp kprr kree krek krke krkk krkr krpr krre krrk krrr peek peep peer peke pekk pepe per- pere perp perr pper pppp pre- pree prek prep reek reep reke repe repp repr rere rrrr

eeeee eepee ekker erere k-p-r keepe keere keppe kerek kerep kerre kreek kreep kreke krepe p-rep peeke peere pekre pepee peppe perer perke perre pre-k preke reepe reere rekke reppe rere- reree

keeker keeper kepper kerker kreker peeker peepee peeper peerer pepper perere perper perree pppppp reeker reeper repper

kee-kee kreeker pee-pee peperek prepere prepper

peeppeep pepperer perperek perrerer

keek-keek