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: Hagfish are noted for secreting large amounts of thick, slimy mucus. 
Fact 2: Today, jawless fish include the lampreys and hagfishes.

Output: Some jawless fish secrete large amounts of thick, slimy mucus.


Input: Consider Input: Fact 1: planting trees has a positive impact on an ecosystem. 
Fact 2: Biodiversity encourages a healthier ecosystem.

Output: planting trees has a positive impact on biodiversity.


Input: Consider Input: Fact 1: an automobile engine transforms chemical energy into mechanical energy. 
Fact 2: For example, the energy found in a liter of gasoline is chemical in nature.


Output: automobile engines burn gasoline to convert the fuel's energy into mechanical energy.