243890
M.J. participants come from a wide range of backgrounds , including : law students who want to specialise in legal theory and comparative studies of law ; students from other disciplines , including teachers of legal studies courses in secondary education , who require a comprehensive understanding of the operation of law ; and international students from all disciplines who want to use their studies to gain an in-depth overview of the principles and operations of legal systems .
 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