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.

Fact 1: Condoms can break; Condoms can be used incorrectly. 
Fact 2: If the condom breaks, withdraw the penis and condom immediately.
a broken condom should be discarded immediately.

Fact 1: pollutants have a negative impact on the environment. 
Fact 2: Environment and Health Environment and Health All living things depend on their environment.
pollutants have a negative impact on all living things.

Fact 1: Lymph is a fluid that leaks out of capillaries into spaces between cells. 
Fact 2: Bacteria invade lymph nodes, which swell, creating the buboes.

Swelling nodes leak fluid out of capillaries into spaces between cells.