e-pro eeeee eepee eorre epher ephor erere eroor erore error he-he he-ro heepe heere heore heper hepro heroe herre herro hhhhh ho-ho ho-oh hohoe hooer hoope hoore hopeh hoper hoppe hoppo horhe horre horro hrere hrrep oeppo oh-oh oo-er ooher ooooh ooooo opepe opere ophep opoho opper oreo- orere orero oroer orphe p-rep peere pepee peppe perer perho perre perro pheer pheo- phere phore phrop po-po poher pooer poope poopo poore poper popop poppe poppo porer poro- porro preop proer proor prop- prope propp propr prore reepe reere reerh reher rehoe repop repor reppe repro rere- reree rheo- rhoeo ro-ro roero rooer roope roore roper roppe rorer rprop