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.

Example Input: Fact: Skin color is another polygenic trait.
Example Output: polygenic loci.

Example Input: Fact: if an object is made of a material then that object has the properties of that material.
Example Output: Material is a substance.

Example Input: Fact: nectar is used for attracting pollinators by plants.
Example Output:
a pollinator is a bee.