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.

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

Ex Output:
ants may live in large colonies.


Ex Input:
Fact 1: Organisms that live in marine biomes must be adapted to the salt in the water. 
Fact 2: Salinity is a measure of how much salt is in the water.

Ex Output:
Organisms that live in marine biomes must be adapted to the salinity.


Ex Input:
Fact 1: Evolution occurs in response to a change in the environment. 
Fact 2: Natural selection is the main mechanism of evolution.

Ex Output:

Natural selection occurs in response to a change in the envionrment.