146863
The redesigned aircraft , the Vickers E.S. 1 ( Experimental Scout ) , was a single-engined tractor biplane of fabric covered wooden construction .
 organization: Vickers
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: Vickers 
Answer:
 organization: Vickers