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: Iceland sits on the mid-atlantic ridge. Question: On which ridge does iceland sit?
Example Output: mid-atlantic ridge

Example Input: Sentence: Lipids are made of long chains consisting almost solely of carbon and hydrogen. Question: What are made of long chains consisting almost solely of carbon and hydrogen?
Example Output: lipids

Example Input: Sentence: A(n) atom is the smallest and most fundamental unit of matter, consisting of a nucleus surrounded by electrons. Question: What is the smallest and most fundamental unit of matter, consisting of a nucleus surrounded by electrons?
Example Output:
atom