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: adding salt to a liquid decreases the melting point of that liquid. 
Fact 2: Salt is sodium chloride or NaCl.
Example Output: adding sodium chloride to a liquid decreases the melting point of that liquid.

Example Input: Fact 1: Condoms can break; Condoms can be used incorrectly. 
Fact 2: If the condom breaks, withdraw the penis and condom immediately.
Example Output: a broken condom should be discarded immediately.

Example Input: Fact 1: being exposed to wind can cause erosion of soil. 
Fact 2: Desertifcation can be caused by overgrazing, soil erosion, prolonged drought, or climate change.
Example Output:
being exposed to wind can cause Desertifcation.