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

Ex Input:
Context : The QBZ-95 was first observed outside China on 1 July 1997, when the United Kingdom transferred the sovereignty of Hong Kong to the People's Republic of China.
Question : What year was QBZ-95 commissioned?

Ex Output:
1997

Ex Input:
Context : The Leeds Corn Exchange is a Victorian building in Leeds, West Yorkshire, England, which was designed by Cuthbert Brodrick and completed in 1864.
Question : The architect of Leeds Corn Exchange is whom?

Ex Output:
Cuthbert Brodrick

Ex Input:
Context : USS Patriot (1861) was a schooner acquired by the Union Navy during the American Civil War.
Question : Which war did USS Patriot (1861) participate in?

Ex Output:
American Civil War