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: Flowers attract pollinators, and fruits encourage animals to disperse the seeds. 
Fact 2: Insects are the major pollinators.
Example Output: Flowers attract insects.

Example Input: Fact 1: Platypus females lay their eggs in a burrow. 
Fact 2: Like the platypus, it is an egg laying mammal.
Example Output: some mammals lay their eggs in a burrow.

Example Input: Fact 1: Cells are the basic units of the structure and function of living things. 
Fact 2: Tigers are the largest of the living cats.
Example Output:
Cells are the basic units of the structure and function of tigers.