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.

Input: Consider Input: Fact: staying warm has a positive impact on an animal 's survival.

Output: animal survival.


Input: Consider Input: Fact: Insects spread disease and destroy crops.

Output: Crops.


Input: Consider Input: Fact: Scientists still know relatively little about Archaea.


Output: Archaea.