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

Example Input: Context : Ishi died of tuberculosis on March 25, 1916. 
Question : What medical condition did Ishi have?
Example Output: tuberculosis

Example Input: Context : After twelve years of marriage, Hannah Van Buren contracted tuberculosis and died on February 5, 1819, at the age of thirty-five. 
Question : What illness did Hannah Van Buren suffer from?
Example Output: tuberculosis

Example Input: Context : The Dragunov sniper rifle (formal Russian: Снайперская Винтовка системы Драгунова образца 1963 года Snayperskaya Vintovka sistem'y Dragunova obraz'tsa 1963 goda (SVD-63), officially ``Sniper Rifle, System of Dragunov, Model of the Year 1963'') is a semi-automatic sniper/designated marksman rifle chambered in 7.62×54mmR and developed in the Soviet Union. 
Question : Which was the official year for the approval of Dragunov sniper rifle?
Example Output:
1963