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" There are 500 million messages transmitted through the Internet everyday , " said Tim Casey of the U.S.-based MCI Communications Corporation . "
 person: Tim Casey; organization: MCI Communications Corporation; else: Internet; else: U.S.-based
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 person: Tim Casey; organization: MCI Communications Corporation; else: Internet; else: U.S.-based