This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

Q: Passage: Philadelphia has more public art than any other American city. In 1872, the Association for Public Art (formerly the Fairmount Park Art Association) was created, the first private association in the United States dedicated to integrating public art and urban planning. In 1959, lobbying by the Artists Equity Association helped create the Percent for Art ordinance, the first for a U.S. city. The program, which has funded more than 200 pieces of public art, is administered by the Philadelphia Office of Arts and Culture, the city's art agency. Question: Which American city has the most public art?

A: Philadelphia
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Q: Passage: In November 2004, following a period of turmoil caused by the revelation that Shell had been overstating its oil reserves, it was announced that the Shell Group would move to a single capital structure, creating a new parent company to be named Royal Dutch Shell plc, with its primary listing on the London Stock Exchange, a secondary listing on the Amsterdam Stock Exchange, its headquarters and tax residency in The Hague, Netherlands and its registered office in London. The unification was completed on 20 July 2005 and the original owners delisted their companies from the respective exchanges. On 20 July 2005, the Shell Transport & Trading Company plc was delisted from the LSE, where as, Royal Dutch Petroleum Company from NYSE on 18 November 2005. The shares of the company were issued at a 60/40 advantage for the shareholders of Royal Dutch in line with the original ownership of the Shell Group. Question: What was the name of the Shell Group's new parent company?

A: Royal Dutch Shell plc
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Q: Passage: Politically, the Marshall Islands is a presidential republic in free association with the United States, with the US providing defense, subsidies, and access to U.S. based agencies such as the FCC and the USPS. With few natural resources, the islands' wealth is based on a service economy, as well as some fishing and agriculture; aid from the United States represents a large percentage of the islands' gross domestic product. The country uses the United States dollar as its currency. Question: What is the official currency of the Marshall Islands?

A:
United States dollar
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