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The 1983 Virginia Slims of Boston was a tennis tournament played on indoor carpet courts in Boston , Massachusetts in the United States that was part of the 1983 Virginia Slims World Championship Series .
 Boston, Boston, Massachusetts, United States
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Boston, Boston, Massachusetts, United States