Task: Question Answering
Input (English): 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 : Which medical condition afflicts Mélanie de Salignac?
Output (English): blindness