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Gaining his Royal Aero Club Certificate in September 1916 as Flight Sub-Lieutenant , Royal Naval Air Service , he served as an Instructor at Cranwell before joining 10 Squadron RNAS in January 1918 to commence active service .
 organization: Royal Aero Club; organization: Royal Naval Air Service; location: Cranwell; organization: 10 Squadron RNAS
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: Royal Aero Club, Royal Naval Air Service, Cranwell, 10 Squadron RNAS 
Answer:
 organization: Royal Aero Club; organization: Royal Naval Air Service; location: Cranwell; organization: 10 Squadron RNAS