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With an estimated population of 110,997 in 2019 , it was the fourth-largest city in Massachusetts as of the last census and is estimated to be the fifth-largest as of 2018 , and the second-largest in the Boston metropolitan statistical area .
 location: Massachusetts; location: Boston
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Massachusetts; location: Boston