Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Example Input: 10 million years long can a large star be on the main sequence stage.
Example Output: How long can a large star be on the main sequence stage?

Example Input: The action of flushing the toilet, performed multiple times daily, is the single biggest use of water in the home.
Example Output: What action, performed multiple times daily, is the single biggest use of water in the home?

Example Input: The malleability of materials describes the ease in which they can be molded into thin sheets.
Example Output:
What property of materials describes the ease in which they can be molded into thin sheets?