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: Blood pressure is highest in arteries and lowest in veins.
[EX A]: Blood pressure is.

[EX Q]: Fact: a light bulb requires electrical energy to produce light.
[EX A]: coal can be used to create electricity.

[EX Q]: Fact: Many plants respond to the days growing shorter in the fall by going dormant.
[EX A]:
Dormant plants.