Teacher: In this task you will be given an answer to a question. You need to generate a question. The answer given should be a correct answer for the generated question.
Teacher: Now, understand the problem? If you are still confused, see the following example:
This list contains the top 25 accounts with the most followers on the social photo-sharing platform Instagram. As of May 2018, the most followed user is Instagram's own account, with over 235 million followers. Selena Gomez is the most followed individual, with over 137 million followers. Ten accounts have exceeded 100 million followers on the site.
Solution: who has the maximum number of followers on instagram
Reason: The answer is talking about the Instagram accounts that have the most followers. The question asking about the maximum number of followers. So this is a good example.

Now, solve this instance: The Indian independence movement was a series of activities whose ultimate aim was to end the British Raj and encompassed activities and ideas aiming to end the East India Company rule (1757 -- 1857) and the British Raj (1857 -- 1947) in the Indian subcontinent. The movement spanned a total of 91 years (1857 -- 1947) considering movement against British Indian Empire. The Indian Independence movement includes both protest (peaceful and non-violent) and militant (violent) mechanisms to root out British Administration from India.
Student:
how many decades did india's struggle for independence take