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: Birds are endothermic tetrapod vertebrates. 
Fact 2: Class Aves is for the birds, literally.
Example Output: Animals in the class aves are endothermic tetrapod vertebrates.

Example Input: Fact 1: a light bulb converts electrical energy into light energy when it is turned on. 
Fact 2: A photon is a packet of light energy.
Example Output:
A light bulb emits photons when turned on.