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.

Input: Consider Input: Sentence: Deep currents are caused by differences in density at the top and bottom of the ocean. Question: What is caused by differences in density at the top and bottom of the ocean?

Output: deep currents


Input: Consider Input: Sentence: Entropy increases in processes in which solid or liquid reactants form gaseous products and when solid reactants form liquid products. Question: What increases in processes in which solid or liquid reactants form gaseous products and when solid reactants form liquid products?

Output: entropy


Input: Consider Input: Sentence: Exposure to chemical or biological agents can cause an acquired immunodeficiency later in life. Question: What can exposure to chemical or biological agents cause later in life?


Output: an acquired immunodeficiency