Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
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Question: Human facial expressions can communicate emotions.

Answer: What can human facial expressions communicate?


Question: A theory is another name for a broad explanation that is supported by a great deal of evidence.

Answer: What is another name for a broad explanation that is supported by a great deal of evidence?


Question: Pleiotropic effects causes symptoms associated with sickle-cell disease.

Answer:
What causes symptoms associated with sickle-cell disease?