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: There are four classes of biochemical compounds. Question: How many classes of biochemical compounds are there?
Example Output: four

Example Input: Sentence: The mineral quartz is used to produce glass. Question: What mineral is used to produce glass?
Example Output: quartz

Example Input: Sentence: Rubbing your hands together warms them by converting work into thermal energy energy. Question: Rubbing your hands together warms them by converting work into what energy?
Example Output:
thermal energy