751
In 1941 , in an effort to train black aviators , the U.S. Army Air Corps established a training program at Tuskegee Institute , using Moton Field , about away from the campus center .
 organization: U.S. Army Air Corps; organization: Tuskegee Institute; location: Moton Field
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: U.S. Army Air Corps, Tuskegee Institute, Moton Field 
Answer:
 organization: U.S. Army Air Corps; organization: Tuskegee Institute; location: Moton Field