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AOL executives cited a recent study by Media Metrix indicating that the messaging services offered by Yahoo ! and Microsoft are the fastest growing in the United States .
 geographical social political: the United States; organization: AOL; organization: Media Metrix; organization: Yahoo !; organization: Microsoft; person: AOL executives
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
Answer:
 geographical social political: the United States; organization: AOL; organization: Media Metrix; organization: Yahoo !; organization: Microsoft; person: AOL executives