346077
Walker also served as a Fellow of Harvard College ( 1834-1853 ) and a member of its Board of Overseers ( 1825-1836 , 1864-1874 ) .
 person: Walker; organization: Harvard
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: Walker, Harvard 
Answer:
 person: Walker; organization: Harvard