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: completing a circuit causes electricity to flow through that circuit. 
Fact 2: Electricity can give the opener a shock.
Example Output: completing a circuit can give someone a shock.

Example Input: Fact 1: a flashlight requires a source of electricity to produce light. 
Fact 2: Light contains energy.
Example Output: A flashlight requires a source of electricity to produce visible energy.

Example Input: Fact 1: absorbing sunlight causes objects to heat. 
Fact 2: Collector panels absorb sunlight to heat air.
Example Output:
collector panels heat objects with sunlight.