56610
The main undercarriage legs were mounted almost at mid-span , giving the Hobby a wide track , and when retracted the wheels were completely enclosed by a combination of fairings on the undercarriage legs and separate fairing which filled in the remaining semicircular gap .
 None
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:  
Answer:
 None