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.
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Question: Fact: damming a river can cause a lake to form.

Answer: beaver dam.


Question: Fact: a freezer is used for cooling things.

Answer: cooling food helps it last longer.


Question: Fact: Arthropods are the largest phylum of invertebrates.

Answer:
arthropods are insects.