Combine the given two facts to write a concluding fact. Note that there should be some parts of the first and second facts that are not mentioned in this conclusion fact. Your combined fact should be the result of a chain between the two facts. Chains form when two facts connect together to produce a concluding fact. An example of a chain is: "pesticides cause pollution" (fact1) + "pollution can harm animals" (fact2) → "pesticides can harm animals" (conclusion fact). Parts of the concluding fact overlap with the first and the second fact. To construct such a  concluding fact, a useful way is to borrow the subject from one fact and the ending conclusions from another fact.

Example Input: Fact 1: Carbon cycles quickly between organisms and the atmosphere. 
Fact 2: Deforestation also disrupts the Carbon Cycle.
Example Output: Deforestation disrupts the cycle between organisms and the atmosphere.

Example Input: Fact 1: Ethanol is produced by alcoholic fermentation of the glucose in corn or other plants. 
Fact 2: Ethanol is a fuel made of corn.
Example Output: fermentation can be used to make fuel.

Example Input: Fact 1: vinegar can cause harm to the eyes. 
Fact 2: Vinegar is a weak acid (3.5 pH).
Example Output:
Acids can cause harm to the eyes.