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: zinc has a positive impact on the healing of wounds. 
Fact 2: Sources of zinc are soil, zinc oxide, zinc sulfate, zinc chelate.
Example Output: soil can have a positive impact on the healing of wounds.

Example Input: Fact 1: being distracted while driving can cause people to crash their car. 
Fact 2: Some children drive their parents to distraction.
Example Output: Children can cause drivers to crash.

Example Input: Fact 1: coal is used for generating heat by burning. 
Fact 2: Heat comes out the top and can be used for cooking or space heating.
Example Output:
Coal can be used for cooking food.