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: Who lack some of the defining traits of chordates? Answer: adult humans

A: Adult humans lack some of the defining traits of chordates.
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Q: Question: Amines are weak bases due to the presence of a lone pair of what on the nitrogen atom? Answer: electrons

A: Amines are weak bases due to the presence of a lone pair of electrons on the nitrogen atom.
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Q: Question: The iconic gray mantle of the human brain, which appears to make up most of the mass of the brain, is called? Answer: cerebrum

A:
The iconic gray mantle of the human brain, which appears to make up most of the mass of the brain, is called the cerebrum.
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