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.

[EX Q]: Sentence: Oxygen has increased in the atmosphere throughout the history of the earth. Question: What has increased in the atmosphere throughout the history of the earth?
[EX A]: oxygen

[EX Q]: Sentence: Mammals have four limbs and produce amniotic eggs. Question: Mammals have four limbs and produce what kind of eggs?
[EX A]: amniotic

[EX Q]: Sentence: The presence of a nucleus is the main difference between prokaryotic or eukaryotic cells . Question: What is the main difference between prokaryotic or eukaryotic cells ?
[EX A]:
the presence of a nucleus