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

Example Input: The cell starting meiosis is called a primary oocyte.
Example Output: The cell starting meiosis is called a what?

Example Input: Opaque is the term for matter that does not let any light pass through.
Example Output: What is the term for matter that does not let any light pass through?

Example Input: Most digestion is completed in the duodenum.
Example Output:
Where is most digestion completed?