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Ravenswood Park is a nature reserve in the western section of Gloucester , Massachusetts owned and managed by the Trustees of Reservations .
 location: Gloucester , Massachusetts; organization: Trustees of Reservations
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: Gloucester , Massachusetts, Trustees of Reservations 
Answer:
 location: Gloucester , Massachusetts; organization: Trustees of Reservations