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: hearing is used for sensing sound by animals. 
Fact 2: All cats are animals.
Example Output: hearing is used for sensing sound by cats.

Example Input: Fact 1: Oxygen is essential for cellular respiration for all aerobic organisms. 
Fact 2: Less oxygen for the mother means less oxygen for the baby.
Example Output: Mothers need respiration for their babies.

Example Input: Fact 1: storms cause bodies of water to increase amount of water they contain. 
Fact 2: More than 500 homes have been damaged by flood waters.
Example Output:
Storms can cause homes to be damaged by flooding.