In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

Q: Question: Knees and elbows are examples of what part of the skeletal system? Answer: joints

A: Knees and elbows are examples of the joints of the skeletal system.
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Q: Question: A collapsing nebula leads to what process? Answer: nuclear fusion

A: A collapsing nebula leads to nuclear fusion process.
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Q: Question: Glutathione is a low-molecular-weight compound found in living cells that is produced naturally by what? Answer: liver

A:
Glutathione is a low-molecular-weight compound found in living cells that is produced naturally by the liver.
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