87800
After stints as Top-40 ( 1956 – 62 ) , and middle-of-the-road ( 1962 – 68 ) , WCOP switched to a country music format , and was an affiliate of NBC Radio Network ( WCOP became an NBC affiliate in 1966 , two years before the switch to country ) .
 organization: Radio Network
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: Radio Network 
Answer:
 organization: Radio Network