Generate a correct and concise answer for the question based on the words in the context.

Example Input: Context : NGC 1309 is a spiral galaxy located approximately 120 million light-years away in the constellation Eridanus. 
Question : What is the constellation where NGC 1309 is located?
Example Output: Eridanus

Example Input: Context : The GCR Class 1 was a class of steam locomotives designed by John G. Robinson for the Great Central Railway, and introduced to service between December 1912 and 1913. 
Question : What was the year that GCR Class 1 entered service?
Example Output: December 1912

Example Input: Context : Ian MacAlister Stewart, 13th Laird of Achnacone OBE MC* DSO DL (1895 - 1987) was a Scottish military officer who served in the British Army during both the First and Second World Wars. 
Question : In what military organization did Ian MacAlister Stewart serve?
Example Output:
British Army