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: Mating is generally preceded by courtship. 
Fact 2: Moose courtship begins in autumn.
Example Output: Moose mating happens around autumn.

Example Input: Fact 1: Chromoplasts make and store pigments. 
Fact 2: Chromoplasts are found in many flower petals and fruits.
Example Output: Flower petals and fruits make and store pigments.

Example Input: Fact 1: Cells vary in size as well as shape, but all cells are very small. 
Fact 2: Most cells are too small to be seen without a microscope.
Example Output:
Cells vary in size as well as shape and are seen with a microscope.