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.

Example Input: Sentence: Potential energy is stored in an object because of its position or shape. Question: What type of energy is stored in an object because of its position or shape?
Example Output: potential

Example Input: Sentence: Building new homes in a wetland of these is most likely harmful to an ecosystem. Question: Which of these is most likely harmful to an ecosystem?
Example Output: Building new homes in a wetland

Example 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?
Example Output:
frequency