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He had previously worked at NBC Entertainment , then had run Fox ' s programming in the first days of that network and most recently had managed programming at the WB Network , helping that network establish itself as a strong competitor for young audiences .
 organization: NBC Entertainment; organization: Fox; organization: that network; organization: the WB Network; organization: that network; organization: itself; organization: a strong competitor for young audiences; person: He; person: young audiences
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 Entertainment; organization: Fox; organization: that network; organization: the WB Network; organization: that network; organization: itself; organization: a strong competitor for young audiences; person: He; person: young audiences