114757
Realizing the limitation of conventional academic system in which he played a part as a teacher for 25 years , he left it to undertake the task of educating farmers through demystification of science , adopting innovative non-formal methods of knowledge communication .
 None
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:  
Answer:
 None