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The case had been closely watched at the start when players claimed that the ` ` single - entity ' ' structure of the league _ a centralized ownership mimicked by every new sports league formed since MLS _ was itself an antitrust violation .
 organization: the league; organization: every new sports league formed since MLS; organization: MLS; person: players
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
 Entities: the league, every new sports league formed since MLS, MLS, players 
Answer:
 organization: the league; organization: every new sports league formed since MLS; organization: MLS; person: players