Given a statement, generate a question such that the answer is contained in that statement.

Example Input: Some snakes can go a long time between meals
Example Output: What can go a long time between meals?

Example Input: Pigeon eggs have hard shells made of calcium carbonate.
Example Output: What is the hard shell of pigeon eggs made of?

Example Input: ocean temperatures can change conditions of the sky from day to day
Example Output:
What can change the conditions of the sky from day to day?