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

Ex Input:
Context : The QBZ-95 was first observed outside China on 1 July 1997, when the United Kingdom transferred the sovereignty of Hong Kong to the People's Republic of China. 
Question : What year was QBZ-95 commissioned?

Ex Output:
1997


Ex Input:
Context : François Huber was only fifteen years old when he began to suffer from a disease which gradually resulted in total blindness; but, with the aid of his wife, Marie Aimée Lullin, and of his servant, François Burnens, he was able to carry out investigations that laid the foundations of a scientific knowledge of the life history of the honey bee. 
Question : What was François Huber's medical condition near the end of his life?

Ex Output:
blindness


Ex Input:
Context : Umm Farwah bint al-Qasim (Arabic: أم فروة بنت القاسم‎) or Umm Farwah Fatimah was the wife Muhammad al-Baqir, and the mother of the sixth Imam, Ja'far al-Sadiq. 
Question : What is Umm Farwah bint al-Qasim's spouse's name?

Ex Output:

Muhammad al-Baqir