instruction:
Generate a correct and concise answer for the question based on the words in the context.
question:
Context : Mélanie de Salignac (Marennes, Charente-Maritime, 19 January 1744 --1766) was a young French woman whose achievements in the face of her disability - blindness - were mentioned in the accounts of Diderot. 
Question : What illness negatively impacted Mélanie de Salignac?
answer:
blindness


question:
Context : Hermann-Friedrich Joppien (19 July 1912 -- 25 August 1941) was a German Luftwaffe military aviator during World War II, a fighter ace credited with 70 enemy aircraft shot down in roughly 270 combat missions. 
Question : During which historic war was Hermann-Friedrich Joppien an officer?
answer:
World War II


question:
Context : Johann Friedrich Gleditsch (15 August 1653 -- 26 March 1716) was a major book publisher in the late 17th and early 18th centuries. 
Question : Which is the date of death for Johann Friedrich Gleditsch?
answer:

26 March 1716