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: The thick skin, found only on the palms of the hands and the soles of the feet, has an extra layer. Question: The thick skin, found only on the palms of the hands and the soles of the feet, has an extra what?
Example Output: layer

Example Input: Sentence: Co2 gas is released into the atmosphere when fossil fuels are burned. Question: What gas is released into the atmosphere when fossil fuels are burned?
Example Output: co2

Example Input: Sentence: Particle accelerators can nuclear fusion in stars be simulated. Question: How can nuclear fusion in stars be simulated?
Example Output:
particle accelerators