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

Example Input: Context : Song of Summer is a 1968 black-and-white television film written, produced and directed by Ken Russell for the BBC's Omnibus series which was first broadcast on 15 September 1968. 
Question : The production company responsible for Song of Summer is what?
Example Output: BBC

Example Input: Context : John Holland, 2nd Duke of Exeter KG (18 March 1395 -- 5 August 1447) was an English nobleman and military commander during the Hundred Years' War. 
Question : Which historic war did John Holland, 2nd Duke of Exeter participate?
Example Output: Hundred Years' War

Example Input: Context : The Sinclair Scientific calculator was a 12-function, pocket-sized scientific calculator introduced in 1974, dramatically undercutting in price other calculators available at the time. 
Question : What year was Sinclair Scientific commissioned?
Example Output:
1974