Definition: Compose a new way to ask the same question. The new question must be asking the exact same thing as the original question does. Without any other information, you should be able to tell that the original question and the new question are the same. Preserve bracketed phrases in your new question. You can change the rest of the question provided the above requirements are satisfied. The new question must have a natural, fluent formulation, as if it were composed by a native English speaker. You will be given three pieces of information to help you create better questions. Those are: "Answer": the answer to the question, e.g., "Honolulu". "Answer Type": the type of the answer, e.g., "Location". "Auxiliary Information" is a detailed description of some concepts mentioned in the question, if any.
Input: original question: What currency was used in the construction of [Central Park]?
answer: united states dollar
answer type: Currency.
auxiliary information: Central Park is an urban park in the central part of the borough of Manhattan, New York City. It was initially opened in 1857, on 778 acres of city-owned land, later expanding to its current size of 843 acres. In 1858, soon-to-be famed national landscapers and architects, Frederick Law Olmsted and Calvert Vaux, won a design competition to improve and expand the park with a plan they titled the "Greensward Plan". Construction began the same year, continued during the American Civil War further south, and was completed in 1873. It was designated a National Historic Landmark in 1962. The Park was managed for decades by the New York City Department of Recreation and Parks and is currently managed by the Central Park Conservancy under contract with the municipal government in a public-private partnership. The Conservancy is a non-profit organization that contributes 75% of Central Park's $57 million annual budget and employs 80.7% of the Park's maintenance staff. Today, Central Park is the most visited urban park in the United States as well as one of the most filmed locations in the world.

The currency used to fund the construction of [Central Park] was what?