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: Flagella help prokaryotes move.

Answer: Flagella are.


Question: Fact: Immunodeficiency occurs when the immune system is not working properly.

Answer: immune system keeps people healthy.


Question: Fact: Ejaculation occurs when muscle contractions propel sperm from the epididymes.

Answer:
ejaculation semen.