In this task, you need to write a topic word from the given fact. The topic word must have at least one word overlap with the given fact. The topic word often involves adding a new word from a related concept. In your topic word, use at least one word from the given fact. Topic words with two or more words work best.

[EX Q]: Fact: when a body of water receives more water than it can hold , a flood occurs.
[EX A]: body of water river.

[EX Q]: Fact: Sperm are released into the surrounding water through the osculum.
[EX A]: Male gamete are sperm.

[EX Q]: Fact: cell division often causes growth.
[EX A]:
Cell division is.