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: adding salt to a liquid decreases the melting point of that liquid. 
Fact 2: Sodium Chloride: It is a table salt .
Example Output: adding sodium chloride to a liquid decreases the melting point of that liquid.

Example Input: Fact 1: eyes are used for seeing by animals by sensing light. 
Fact 2: Light waves are electromagnetic waves.
Example Output: eyes are used for seeing by animals by sensing electromagnetic waves.

Example Input: Fact 1: planting trees has a positive impact on an ecosystem. 
Fact 2: Destruction of Trees is taking place, pollution of air is the Result of cutting trees with pace.
Example Output:
stopping air pollution has a positive effect on an ecosystem.