Write a fact related to the given fact, based on the given topic word. Note that, your fact should have at least one word in common with the given fact. All facts in this task refer to scientific facts. Your related fact must form a chain with the given fact. Chains form when two facts connect together to produce the third fact. An example of a chain is: "pesticides cause pollution" (given fact) + "pollution can harm animals" (related fact) → "pesticides can harm animals" (connected chain). Avoid creating simple paraphrases of the given fact. While your generated fact should be related to the input fact, they must describe slightly different scientific phenomena. It's okay if your related fact includes some irrelevant information, provided that it has some overlap with the given fact and it contains some words corresponding to the provided topic.

Example Input: Fact: the Earth being tilted on its axis causes ones side of the Earth to receive less energy from the Sun than the other side. 
Topic: earth tilt winter.
Example Output: During winter, the earth in the Northern Hemisphere is tilted away from the sun.

Example Input: Fact: the vanes rotating in an electric fan causes air to move. 
Topic: moving air can help people feel cool.
Example Output: Air moving through a room helps a person to feel less short of breath.

Example Input: Fact: All life relies on a relatively narrow range of pH, or acidity. 
Topic: pH life.
Example Output:
If the pH level is higher or lower, aquatic life is endangered.