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: Pollination is the fertilization step in the sexual reproduction of plants. 
Fact 2: Pollination is mostly by honeybees, and wind pollination is limited.
Example Output: Honeybees are important for plant reproduction.

Example Input: Fact 1: carpooling decreases the amount of cars used to travel to a place. 
Fact 2: And fewer cars means less pollution.
Example Output: carpooling leads to less pollution.

Example Input: Fact 1: glass cause refraction of light. 
Fact 2: Electromagnetic Spectrum Different wavelengths of light are refracted by different amounts.
Example Output:
Glass will cause light passing through it to spread out into a spectrum.