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.

Input: Consider Input: Fact 1: Insects may live in large colonies and have complex social behaviors. 
Fact 2: Ants and butterflies are insects.

Output: ants may live in large colonies.


Input: Consider Input: Fact 1: if a neutral atom loses an electron then an atom with a negative charge will be formed. 
Fact 2: Negative charges are attracted to positive charges.

Output: A neutral atom that loses an electron will be attracted to positive charges?.


Input: Consider Input: Fact 1: bacteria in soil convert atmospheric nitrogen into a form usable by plants. 
Fact 2: Plants have to have nitrogen to grow.


Output: bacteria helps plants grow.