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: Most aquatic organisms do not have to deal with extremes of temperature or moisture. 
Fact 2: Fish Fish are the ultimate aquatic organism.
Example Output: Most fish do not have to deal with extreme temperature or moisture.

Example Input: Fact 1: Chemical bonds form when substances react with one another. 
Fact 2: All substances are composed of molecules.
Example Output: Chemical bonds form when molecules react with one another.

Example Input: Fact 1: a seismometer is used to measure the strength or magnitude of an earthquake. 
Fact 2: The magnitude of an earthquake is its strength, or the amount of shaking.
Example Output:
A seismometer is used to measure the amount of shaking of an earthquake.