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: Gene flow occurs when individuals move into or out of a population. 
Fact 2: Geographic subdivision decreases gene flow.
Example Output: Geographic subdivision decreases how fast individuals move into or out of a population.

Example Input: Fact 1: All cells share some of the same structures and basic functions. 
Fact 2: Inside the cell is a structure called the nucleus.
Example Output: All nucleus share the same basic functions.

Example Input: Fact 1: being exposed to wind can cause erosion of soil. 
Fact 2: Soil lost during erosion can also be very damaging to our water supplies and the Bay.
Example Output:
being exposed to wind can damage water supplies.