61616
It was an all-weather temporary field built by the United States Army Air Force XII Engineer Command using a graded earth compacted surface , with a prefabricated hessian ( burlap ) surfacing known as PHS .
 organization: United States Army 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 Army Air Force 
Answer:
 organization: United States Army Air Force