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: In the nuclear fusion process, two light nuclei combine to produce a heavier nucleus and great energy. Question: In which process do two light nuclei combine to produce a heavier nucleus and great energy?
Example Output: nuclear fusion

Example Input: Sentence: Most of the energy used by living things comes either directly or indirectly from the sun. Question: Most of the energy used by living things comes either directly or indirectly from what?
Example Output: the sun

Example Input: Sentence: A solution forms when one substance dissolves into another. Question: What forms when one substance dissolves into another?
Example Output:
solution