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: hydropower requires damming a river. 
Fact 2: Hydropower is a renewable resource.

Output: Damming a river can provide a renewable resource.


Input: Consider Input: Fact 1: heavy rains cause flooding. 
Fact 2: Hurricane rains can cause landslides and flash floods.

Output: flooding can cause landslides.


Input: Consider Input: Fact 1: wind causes erosion. 
Fact 2: Erosion causes destruction of aquatic habitats due to siltation and flooding.


Output: High winds can lead to destruction of aquatic habitats.