In this task, you are given a sentence and a question, you would be asked to create the answer which is contained in the sentence provided.

Q: Sentence: The development of the respiratory system in the fetus begins at about 4 weeks. Question: The development of the respiratory system in the fetus begins at about?

A: 4 weeks
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Q: Sentence: Property to time kind of variation does a rate measure. Question: What kind of variation does a rate measure?

A: property to time
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Q: Sentence: Hardwood lumber of these is the most important product of virginia forests. Question: Which of these is the most important product of Virginia forests?

A:
Hardwood lumber
****