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: Phosphate groups are found within phospholipids and nucleotides.

Answer: Phosphate groups are found within phospholipids and what else?

Question: Group 16 is called the oxygen group.

Answer: Group 16 is called what?

Question: Plants make starches to store extra glucose.

Answer:
What do plants make to store extra glucose?