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

Example Input: Fractures cure when osteoclasts form new living tissue
Example Output: What form new living tissue?

Example Input: Synapsids were a further evolution in a chain of mammalian animals
Example Output: What was a further evolution in a chain of mammalian animals?

Example Input: The upper epidermis has a layer which helps prevent water loss, abrasions, infections, and damage from toxins.
Example Output:
What does the upper epidermis have a layer that helps prevent water loss, abrasions, infections, and damage from?