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: Insulin helps cells take up glucose from the blood. 
Fact 2: For example, insulin is a protein hormone.
Example Output: protein hormones help cells take up glucose from the blood.

Example Input: Fact 1: Viruses cannot reproduce by themselves. 
Fact 2: Passwords multiply and reproduce amongst themselves.
Example Output: Viruses cannot multiply by themselves.

Example Input: Fact 1: Smog contains particulates. 
Fact 2: And where there's ozone, there's smog.
Example Output:
ozone contains particulates.