3121
In the late spring of 1945 , on Salisbury Plain north of RAF Andover , he slalomed a plane between telegraph poles " to prove it could be done " - earning himself a serious reprimand .
 location: Salisbury Plain; location: RAF Andover
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: Salisbury Plain, RAF Andover 
Answer:
 location: Salisbury Plain; location: RAF Andover