41717
In 1976 , the episode script was selected as the basis of an unsuccessful pilot episode for an American Broadcasting Company adaptation called " The Rear Guard " .
 organization: American Broadcasting Company
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: American Broadcasting Company 
Answer:
 organization: American Broadcasting Company