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: the volume of an object can be used to describe the size of that object. 
Fact 2: Size is a relative aggregate measure of volume and mass.
Example Output: The volume of an object can be used to measure the mass of the object.

Example Input: Fact 1: a speedometer is used for giving a driver feedback on the speed of their vehicle. 
Fact 2: Speed is the magnitude of velocity.
Example Output: A speedometer is used for giving feedback on the velocity of a vehicle.

Example Input: Fact 1: when a hurricane moves over land , that hurricane will decrease in strength. 
Fact 2: Large bodies of land are called continents.
Example Output:
When hurricanes move over continents, their strength decreases.