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.

Input: Consider Input: Background Paragraph: The Human Immunodeficiency Virus ( HIV ) is the virus that causes Acquired Immunodeficiency Syndrome ( AIDS ). Most researchers believe that the HIV originated in sub-Saharan Africa during the 20th century. HIV is transmitted by sexual contact and by contact with infected bodily fluids, such as blood, semen, breast milk, and vaginal secretions. It is also passed from mother to fetus. HIV is now a pandemic , with an estimated (as of 2008) 38.6 million people now living with the disease worldwide. It is estimated that AIDS has killed more than 25 million people since it was first recognized in 1981. 
Story: Dean and Paul both went to volunteered in Africa. They had a blood test when they came back. Paul had been infected with the HIV virus while Dean was healthy and clean. 
Question: Which friend has a virus that is transmitted by contact with infected semen?

Output: Paul.


Input: Consider Input: Background Paragraph: East Antarctica is colder than its western counterpart because of its higher elevation. Weather fronts rarely penetrate far into the continent, leaving the centre cold and dry. Despite the lack of precipitation over the central portion of the continent, ice there lasts for extended periods. Heavy snowfalls are common on the coastal portion of the continent, where snowfalls of up to 1.22 metres (48 in) in 48 hours have been recorded. 
Story: Two scientists went to Antarctica for research. Tim was assigned to East Antarctica, while John was assigned to West Antarctica. They spent 6 months there. 
Question: Which scientist experienced more weather fronts?

Output: Tim.


Input: Consider Input: Background Paragraph: Existing data on the role of immigration on residential segregation trends in the US suggest that foreign-born Hispanics, Asians and blacks often have higher rates of segregation than do native-born individuals from these groups. Segregation of immigrants is associated with their low-income status, language barriers, and support networks in these enclaves. Research on assimilation shows that while new immigrants settle in homogenous ethnic communities, segregation of immigrants declines as they gain socioeconomic status and move away from these communities, integrating with the native-born. 
Story: A recent study has been published about two U.S cities containing large Hispanic population and their origins. Los Angeles which has a larger native born population, and San Diego, which is formed mostly of immigrants that have been foreign-born, have been listed as the top two. 
Question: Will Los Angeles have more or less segregation than San Diego?


Output: less.