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 Input:
Sentence: Light retains its original color under water because frequency remains the same when light is refracted. Question: Light retains its original color under water because what remains the same when light is refracted?

Ex Output:
frequency


Ex Input:
Sentence: The composition of the atmosphere has changed over the last 200 years primarily due to human activity. Question: Which of the following has changed over the last 200 years primarily due to human activity?

Ex Output:
the composition of the atmosphere


Ex Input:
Sentence: In celsius, the boiling point of water is one hundred degrees. Question: In celsius, what is the boiling point of water?

Ex Output:

one hundred degrees