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: howling is used to warn other wolves by wolves.
answer:
canis lupus wolves.


question:
Fact: folding an object causes that object to change shape.
answer:
folding an object.


question:
Fact: fire converts chemical energy into light and heat energy.
answer:

burning wood creates fire.