Generate a question with a factual answer.
Generated: For what instrument did Frederic write primarily for?

Generate a question with a factual answer.
Generated: What are the Jehovah Witnesses?

Generate a question with a factual answer.
Generated: How are the plant roots able to communicate with rhizome bacteria, fungi, and insects within the soil?

Generate a question with a factual answer.
Generated: What is used a main source of light for a building during the day?