eeeee eener eepee efere effer efren ehnen ehren enfeh enfer enper epeen epene epher ereen erere ernen feere feher fener fenne feren ferr- ferre freeh freep freer frere he-he heene heepe heere heern hefen hefer heffe henen henne heper heren herne herpf herre hhhhh hnrpf hrere hrrep n-p-n neere nefen nefer neffe nefre neher neneh neper neppe neree nerre p-n-p p-rep peene peere pene- pener penne penre pepee peppe peren perer perne perre pheer phen- phene phere phren preef preen preff prene prepn reefe reene reepe reere reerh refen refer reffe refne reher renee rener renfe renne repen reppe rere- reree rheen rhene rnpep rperf