Write a correct answer to the given question based on its associated fact. Make sure that your answer is contained in the associated fact. Don't be creative and introduce any new word that is not mentioned in the associated fact! Remember that the associated fact has been rearranged to form the question. So, the correct answer words must lie within the associated fact. The correct answer can be a word, phrase, or even a sentence.
--------
Question: Fact: Smog is an airborne pollutant. 
Question: What is an airborne pollutant?

Answer: Smog.


Question: Fact: Toyota causes pollution. 
Question: What causes pollution?

Answer: Toyota.


Question: Fact: something similar in structure to cilia help prokaryotes move. 
Question: something what to cilia help prokaryotes move.?

Answer:
similar in structure.