Given a scientific passage and an answer, generate a question for the given answer.

Example Input: Passage: The menstrual cycle includes events that take place in the ovary, such as ovulation. Answer: ovary
Example Output: Ovulation takes place in what organ and is part of the menstrual cycle?

Example Input: Passage: Solar energy travels in photons. Photons travel in waves, which make up electromagnetic radiation. Answer: photons
Example Output: Solar energy travels in what?

Example Input: Passage: Structures in the dermis include hair follicles and sebaceous glands, which produce sebum. Answer: sebum
Example Output:
What is produced by the sebaceous glands?