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

Answer: December 1912


Question: 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?

Answer: Cuthbert Brodrick


Question: Context : The National Museum of Haiti (Musée National d'Haiti) in Port-au-Prince, Haiti, was completed in 1938. 
Question : When was National Museum of Haiti opened officially?

Answer:
1938