instruction:
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.
question:
Fact: operating an automobile usually requires fossil fuels.
answer:
automobile car.


question:
Fact: Testosterone stimulates the reproductive organs to develop into male organs.
answer:
male organ penis.


question:
Fact: Gymnosperms are vascular plants that produce seeds in cones.
answer:

Gymnosperms.