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: when a body of water receives more water than it can hold , a flood occurs. 
Fact 2: Floods are deadly, floods are devastating.
Example Output: When a body of water receives more water than it can hold, death and devastation can result.

Example Input: Fact 1: Insects may live in large colonies and have complex social behaviors. 
Fact 2: Ants are social insects living in colonies.
Example Output: Ants have complex social behavior.

Example Input: Fact 1: a car engine usually converts gasoline into motion and heat through combustion. 
Fact 2: Combustion is a type of oxidation reaction.
Example Output:
a car engine usually converts gasoline into motion and heat through a type of oxidation reaction.