187635
The base is one of the oldest facilities of the Air Force , having been established on 30 December 1916 , prior to America 's entry to World War I by the Army Air Service , named for aviation pioneer Samuel Pierpont Langley .
 organization: Army Air Service; person: Samuel Pierpont Langley
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: Army Air Service, Samuel Pierpont Langley 
Answer:
 organization: Army Air Service; person: Samuel Pierpont Langley