270193
In 1946 , the University of Chicago , one of the league 's charter members , chose to de-emphasize varsity athletics and left the conference , although it continues its academic affiliation with the Big Ten to this day as a member of the Committee on Institutional Cooperation .
 organization: University of Chicago; organization: Big Ten; organization: Committee on Institutional Cooperation
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: University of Chicago, Big Ten, Committee on Institutional Cooperation 
Answer:
 organization: University of Chicago; organization: Big Ten; organization: Committee on Institutional Cooperation