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The 1996 Comcast U.S. Indoor was a tennis tournament played on indoor carpet courts in Philadelphia , Pennsylvania in the United States and was part of the Championship Series of the 1996 ATP Tour .
 location: Philadelphia; location: Pennsylvania; location: United States
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: Philadelphia, Pennsylvania, United States 
Answer:
 location: Philadelphia; location: Pennsylvania; location: United States