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: Yeast reproduce asexually by budding.
Example Output: Yeast.

Example Input: Fact: if seeds stick to the fur of an animal then that seed will be transported by the animal.
Example Output: animal fur seed.

Example Input: Fact: a speedometer is used for giving a driver feedback on the speed of their vehicle.
Example Output:
car speed measured.