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An influential movement in the study of oral poetry , both because it helped to bring oral poetry within the realms of academic literary study and because it illuminated the ways in which poetic form and orality interrelate , has been the oral-formulaic theory developed by Milman Parry and Albert Lord .
 person: Milman Parry; person: Albert Lord
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: Milman Parry, Albert Lord 
Answer:
 person: Milman Parry; person: Albert Lord