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: Skin color is a polygenic trait.

Output: Skin color.


Input: Consider Input: Fact: Cytokinesis is the final stage of cell division in eukaryotes as well as prokaryotes.

Output: Cytokinesis.


Input: Consider Input: Fact: a flower 's purpose is to produce seeds.


Output: animals seeds.