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: Climate influences plant growth, biodiversity, and adaptations of land organisms. 
Fact 2: Climate Forests stabilize climate.
Example Output: Forests stabilize what influences plant growth.

Example Input: Fact 1: when a hemisphere is tilted away from the sun , that hemisphere receives less direct sunlight. 
Fact 2: Sunlight is pure energy.
Example Output: when a hemisphere is tilted away from the sun , that hemisphere receives less direct energy.

Example Input: Fact 1: Active immunity results when an immune response to a pathogen produces memory cells. 
Fact 2: People with weaker immune systems are more likely to get sick from contaminated foods.
Example Output:
memory cells help keep people from getting sick.