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NBC has several aging hits , including ` ` Frasier ' ' and ` ` Friends , ' ' that may not have many more years on the network , and NBC executives have said this fall that it was especially crucial the network add some new replacements .
 organization: NBC; organization: the network; organization: NBC; organization: the network; person: NBC 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:
 organization: NBC; organization: the network; organization: NBC; organization: the network; person: NBC executives