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The demonstrators , said by police to number 6,000 , also urged the release of Nadarajah Muralidaran , Swiss-based leader of the the Tamil Tiger guerrillas , who has been held in a Zurich jail since April on charges of extortion .
 location: Zurich; else: Swiss-based; organization: Tamil Tiger; person: Nadarajah Muralidaran
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, else, organization, person 
Text: {0} 
 Entities: Zurich, Swiss-based, Tamil Tiger, Nadarajah Muralidaran 
Answer:
 location: Zurich; else: Swiss-based; organization: Tamil Tiger; person: Nadarajah Muralidaran