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: Reproduction is the process by which organisms give rise to offspring. 
Fact 2: Sex equals reproduction.
Example Output: sex is the process by which organisms give rise to offspring.

Example Input: Fact 1: if an object is in the sunlight then that object will absorb solar energy. 
Fact 2: Solar panels absorb energy from the sun.
Example Output: Solar panels absorb sunlight.

Example Input: Fact 1: HIV infects and destroys helper T cells. 
Fact 2: Helper T Cells Helper T cells are the brains behind immune response.
Example Output:
HIV infects and destroys part of the immune response.