instruction:
Generate a correct and concise answer for the question based on the words in the context.
question:
Context : Between March 1942 and February 1943, Lysaght's produced 28,000 Owen Guns. 
Question : What was the year that Owen Gun entered service?
answer:
1942


question:
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 : In which year was the service entry date for Sinclair Scientific?
answer:
1974


question:
Context : George G. Moore (July 2, 1844 -- November 26, 1925) was a Union Army soldier during the American Civil War. 
Question : What war or battle involved George G. Moore?
answer:

American Civil War