You are given a background paragraph that describes one or more causal or qualitative relationships such as a relationship in economics or a scientific law and a story that makes use of the concepts or the relationship described in the provided paragraph. You are also given a question about the story that requires an understanding of the relationship described in the background paragraph and the story. You need to come up with an answer to the given question; the answer will be a span from either the question or the story. In order to correctly answer the given question, you need to understand the relationship mentioned in the background paragraph and should be able to use it to understand that in the story. Your answer can not consist of any word that is not mentioned in any of these: the background paragraph, the story, or the question. You can directly copy and paste a span from the story or the question while answering the given question.

Ex Input:
Background Paragraph: Hepatitis B is a contagious virus that affects the liver, infection can last from a few weeks to a serious lifelong illness. Two different types of infection exist for this disease, "acute" and "chronic." Acute Hepatitis B is a short term illness that occurs within 6 months of exposure, Chronic Hepatitis B is long term and happens when the virus remains in the body. The younger the child is, the greater their chance of developing a chronic infection and this risk goes down as the child gets older. Approximately 90% of infected infants will develop a chronic infection.[3]. 
Story: A 3rd grade classroom photo was held today. They all gathered by age. Gloria was the youngest. Evelyn was the 2nd youngest. Jean was the 3rd youngest. Cheryl was the 4th youngest. Mildred was the 5th youngest. Katherine was the 6th youngest. The last one was Joan, who was the oldest. They all looked fantastic that day. 
Question: Who has a greater chance of developing a chronic infection: Cheryl or Evelyn?

Ex Output:
Evelyn.


Ex Input:
Background Paragraph: Light may transfer its energy to matter rather than being reflected or transmitted by matter. This is called absorption . When light is absorbed, the added energy increases the temperature of matter. If you get into a car that has been sitting in the sun all day, the seats and other parts of the car’s interior may be almost too hot to touch, especially if they are black or very dark in color. That’s because dark colors absorb most of the sunlight that strikes them. 
Story: There are two cats sitting outside in the sun. One of them has white fur and one of them has black fur. Tina sees them and goes to pet them both.         
                                                  Robert is planning a beach trip and needs to buy a new lounge chair to sit in because his old one is broken. At the store he sees two chairs that he likes. One of the chairs is dark blue and one of the chairs is light blue. 
Question: If left in the sun at the beach which chair color would become warmer the dark blue chair or the light blue chair?

Ex Output:
the dark blue chair.


Ex Input:
Background Paragraph: The brains of all mammals have a unique layer of nerve cells covering the cerebrum. This layer is called the neocortex (the pink region of the brains in Figure above ). The neocortex plays an important role in many complex brain functions. In some mammals, such as rats, the neocortex is relatively smooth. In other mammals, especially humans, the neocortex has many folds. The folds increase the surface area of the neocortex. The larger this area is, the greater the mental abilities of an animal. 
Story: Two colleagues studied at the same university. Nick studied the brains of birds, while Joe studied the brains of mammals. 
Question: Which colleague studied more about the smooth neocortex of rats?

Ex Output:

Joe.