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.

[Q]: Fact: cables are used for support by suspension bridges.
[A]: cables are metal.


[Q]: Fact: Arteries generally carry oxygen-rich blood.
[A]: Arteries generally carry oxygen-rich blood.


[Q]: Fact: Caffeine is a central nervous system stimulant.
[A]:
caffeine coffee.