Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.
--------
Question: What do self molecules bind to no correction what is a one class of self molecule?

Answer: What is a one class of self molecule?


Question: What are cestida named?

Answer: What are cestida called?


Question: What are ctenophora commonly known as no do cnidarians use their combs for?

Answer:
What do cnidarians use their combs for?