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.

Input: Consider Input: 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?

Output: oxygen

Input: Consider Input: Sentence: The term "vapor" refers to the gas phase when it exists at a temperature below boiling temperature. Question: The term "vapor" refers to the gas phase when it exists at a temperature below what?

Output: boiling temperature

Input: Consider Input: Sentence: Momentum is directly related to both mass and velocity. Question: Momentum is directly related to both mass and?
Output: velocity