58387
The theory of self-correction in folklore transmission was first articulated by the folklorist Walter Anderson in the 1920 s ; this posits a feedback mechanism which would keep folklore variants closer to the original form .
 person: Walter Anderson
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: Walter Anderson 
Answer:
 person: Walter Anderson