PERIODOLOGY

de do ed el er go id li lo od oe oi op or oy pe pi re ye yo

del dey die dig dip doe dog dol dor dry dye ego eld erg ged gel gey gid gie gip god goo gor goy gyp ire led leg lei ley lid lie lip log loo lop lye ode oil old ole ope ore ped peg per pie pig ply pod poi pol poo pro pry pye red reg rei rep rid rig rip rod roe rye yep yid yip yod

deil deli diel diol dire dirl doer doge dogy dole door dope dopy dore dorp dory dreg drip drop dyer edgy ergo geld gied gild gird girl giro gled gley glop goer gold good goop gore gorp gory grey grid grip gyre gyri gyro idle idly idol idyl ired lido lied lier lipe lire lode loge logo logy loid loop lope lord lore lory lyre odor odyl ogle ogre oily oldy oleo olio oped ordo orgy orle oyer peri pied pier pile pily pled plie plod ploy pogy pole polo poly pood pool poor pore prey prig prod prog pyre pyro redo rely repo ride riel rile ripe rode roil role rood rope ropy yeld yelp yipe yird yogi yore