Given a statement and question, generate the answer to the question such that the answer is contained in the statement.

Example Input: statement: h2o is essential for all plants on Earth, question: What is essential for all plants on Earth?
Example Output: h2o

Example Input: statement: Deliveries requires knowing direction in some form or another., question: What requires knowing direction in some form or another?
Example Output: Deliveries

Example Input: statement: Weather refers to the conditions of the Earth's oxygen from day to day., question: What refers to the conditions of the Earth's oxygen from day to day?
Example Output:
Weather