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: Many consumers feed at more than one trophic level. 
Fact 2: Nutrient levels are referred to as trophic status.
Example Output: Many consumers feed at more than one nutrient level.

Example Input: Fact 1: Reptile parents provide little if any care to their young. 
Fact 2: Crocodiles, snakes, and lizards are all types of reptiles.
Example Output: lizards provide little if any care to their young.

Example Input: Fact 1: Playing is just one of many ways that mammals and other animals learn how to behave. 
Fact 2: Dogs like to play fetch.
Example Output:
fetch is a way that dogs learn how to behave.