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: Producers make food from inorganic molecules. 
Fact 2: Plants are known as producers .
Example Output: Plants make food from inorganic molecules.

Example Input: Fact 1: electricity sometimes is used for heating buildings. 
Fact 2: Nuclear fission is the only method currently used by nuclear plants to generate electricity.
Example Output: Nuclear fission can be used to heat buildings.

Example Input: Fact 1: Cancer cells divide more often than normal cells, and grow out of control. 
Fact 2: Cancer is an example of a mutation in cells.
Example Output:
Mutation can cause growth out of control.