200833
History The site was established in 1957 as a manned Gap Filler radar station , built by the United States Air Force , under operational control of Cartwright Air Station and part of the Pinetree Line of Ground-Control Intercept ( GCI ) radar sites .
 organization: United States Air Force
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: United States Air Force 
Answer:
 organization: United States Air Force