In this task, you are given a question and a corresponding answer. Your task is to generate a fact statement that is useful in answering the given question.

Example input: Question: Frilled sharks and angler fish live far beneath the surface of the ocean, which is why they are known as? Answer: deep sea fish
Example output: deep sea animals live deep in the ocean.
Example explanation: This sentence is useful when answering the given question. The sentence provides the information that animals who live deep in the ocean are called deep sea fish. This is a good output. 
Q: Question: What tool would be most helpful in aiding indoor plants in photosynthesis? Answer: a large window.
A:
photosynthesis means producers convert from carbon dioxide, water, and solar energy into food for themselves