TASK DEFINITION: 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.
PROBLEM: Sentence: Gases is less dense then either solids or liquids. Question: What is less dense then either solids or liquids?

SOLUTION: gases

PROBLEM: Sentence: Most of the heat that enters the mesosphere comes from the stratosphere. Question: Most of the heat that enters the mesosphere comes from where?

SOLUTION: the stratosphere

PROBLEM: Sentence: The scientific revolution took place europe starting in the 1500s. Question: The scientific revolution took place where starting in the 1500s?

SOLUTION:
europe