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: Chlorine is a nonmetal and gains one electron in becoming a anion. Question: Chlorine is a nonmetal and gains one electron in becoming a what?
Example Output: anion

Example Input: Sentence: Most protein antigens require signals from helper t cells (th2) to proceed to make antibody. Question: Most protein antigens require signals from helper t cells (th2) to proceed to make what?
Example Output: antibody

Example Input: Sentence: Iron sulfide iron and sulfur are mixed together in a certain ratio and heated, what do they become. Question: When iron and sulfur are mixed together in a certain ratio and heated, what do they become?
Example Output:
iron sulfide

