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: rest has a positive impact on a health. 
Fact 2: Health is essential to a quality life.
Example Output: rest is essential to quality of life.

Example Input: Fact 1: when the body is hot , sweat is produced to cool the body. 
Fact 2: The sweat evaporates from your skin, cooling it.
Example Output: Your body uses evaporation to cool it down.

Example Input: Fact 1: Pedigrees are useful tools for studying inheritance patterns. 
Fact 2: Parentage determination is performed using the same tests, but applied to pedigree specimens.
Example Output:
Determining parentage is useful for studying inheritance patterns.