e-pro eeeee eepee eerie efere eferi effer effie effio efore efrei eieio eipri eirie eofor eorre eppie erere erier eriff erio- eroor erore error feeor feere fefor feier feoff ferie ferio ferr- ferre ferri ferro fieee fieri fiero fifer fifie fiore fiori firee firei firer firie firpo firre foir- foire foore fore- foreo forio forro freei freep freer freir frere frier fripp froop frore ieiri iepe ieper ierei ieroe if-- ifere iiiee iiiii ioffe ioooi ioooo iorio iperf ippee ippei irepo irori irrep o-fer oeiro oeppo offer offie offir offof offre ofori ofpie ofpop oo-er ooioo ooooo oorie opepe opere opier opio- opir opper oppie oreo- oreoi orere orero orfei orfeo orfoe orfor oroer oropi p-rep peere peeri peire pepee pepoi peppe peppi perer peri- perie perio perre perri perro pforp piere pieri piero piiri piper pippi pippo pipri pirie pirre pirri pirro po-po poeir poire pooer poope poopo poore poori poper popoi popop poppe poppi poppo porer poro- poroi porri porro preef preff preie preif preop prief prier prife prior proer profe proff proif proof proor prop- prope propp propr prore reefe reepe reere refer reffe reffo reiff repop repor reppe repro rere- reree rerip rerir ri-fi riefe rifer riife riper ripio rippe ririe ro-ro roero roffe rofor rooer roofe roope roore roper roppe rorer rperf rprop rripe