Question: Which building in New York City is a skyscraper between Nassau Street and William Street: Central Park Tower or 40 Wall Street? 

Context paragraphs:
Liberty Tower (Manhattan): The Liberty Tower, formerly the Sinclair Oil Building, is located at 55 Liberty Street at the corner of Nassau Street in the Financial District of Manhattan, New York City was built in 1909–10 as a commercial office building and was designed by Chicago architect Henry Ives Cobb in a Gothic Revival style.  It was built on a site adjacent to the New York City Chamber of Commerce Building (1901); the subsequent New York Federal Reserve Bank building was constructed to the east, across Nassau Street, in 1922.  A completely free-standing 33-story building, in 1909 Liberty Tower was the tallest building in the world with such a small footprint.  The limestone building is covered in white architectural terracotta ornamented with birds and alligators and other fanciful subjects.

Fulton Street (New York City Subway): Fulton Street is a New York City Subway station complex in Lower Manhattan.  It consists of four linked stations on the IND Eighth Avenue Line, the IRT Lexington Avenue Line, the BMT Nassau Street Line and the IRT Broadway–Seventh Avenue Line.  The last three cross Fulton Street at Broadway, Nassau Street, and William Street respectively; the Eighth Avenue Line station is underneath Fulton Street, between Broadway and Nassau Streets.  The station is the seventh busiest in the system, as of 2016, with 25,162,937 passengers.

Central Park Tower: Central Park Tower (also known as the Nordstrom Tower and 225 West 57th Street, its address) is a supertall mixed-use commercial/residential project being developed by the Extell Development Company and Shanghai Municipal Investment Group in Midtown Manhattan, New York City.  The building will rise 1,550 ft (472 m) to the roof.  Upon completion, Central Park Tower will become the second tallest skyscraper in the United States.  The building will also be the tallest by roof height in the United States, surpassing the Willis Tower.  The building is also notable for its former proposed architectural height of 1775 ft , one foot shorter than the symbolic 1776 ft height of One World Trade Center.

Gillender Building: The Gillender Building was an early 20-story skyscraper in the Financial District of Manhattan in New York City.  It stood on the northwest corner of Wall Street and Nassau Street, on a narrow strip of land along Nassau Street measuring only 26 × .  At the time of its completion in 1897, the 273 feet (83 m) tall Gillender Building was, depending on ranking methods, the fourth or the eighth tallest structure in New York.

40 Wall Street: 40 Wall Street, also known as the Trump Building, is a 71-story neo-gothic skyscraper between Nassau Street and William Street in Manhattan, New York City.  Erected by The Manhattan Company as its headquarters, the building was originally known as the Bank of Manhattan Trust Building, and also as the Manhattan Company Building, until its founding tenant merged to form the Chase Manhattan Bank.  The structure was completed in 1930 after 11 months of construction.

Bennett Building (New York City): The Bennett Building at 93-99 Nassau Street, or 139 Fulton Street, between Fulton and Ann Streets in the Financial District of Lower Manhattan, New York City is a ten-story plus penthouse cast-iron loft building.  It was commissioned by James Gordon Bennett Jr., the publisher of the "New York Herald" newspaper, and designed by Arthur D. Gilman in the French Second Empire style, the architect's only existing work in New York City.  The building's three fully designed facades face Fulton, Nassau, and Ann Streets.  Constructed in 1872-73 at six stories, the mansard roof was removed and three floors and a penthouse were added in 1890-92 by James M. Farnsworth for the building's new owner, John Petit.  In 1894, Farnsworth constructed an extension of the building to Ann Street.  In both cases, Farnsworth's additions carefully followed Gilman's original design.  The Bennett Building is the tallest building in the world with an entirely cast-iron facade.

William Street (Manhattan): William Street is a street in the Financial District of Lower Manhattan, New York City.  It runs generally southwest to northeast, crossing Wall Street and terminating at Broad Street and Spruce Street, respectively.  Between Beaver Street and Broad Street, the street is known as South William Street.  Between Beekman Street and Spruce Street, in front of New York Downtown Hospital, William Street is pedestrian-only.

J/Z (New York City Subway service): The J Nassau Street Local and Z Nassau Street Express (earlier Jamaica Express and displayed as Jamaica Local/Express on the R160 cars) are two rapid transit services in the B Division of the New York City Subway.  Their route emblems, or "bullets", are colored brown since they use the BMT Nassau Street Line in Lower Manhattan.

14 Wall Street: 14 Wall Street, originally the Bankers Trust Company Building, is a skyscraper at 14 Wall Street at the corner of Nassau Street and running through to Pine Street in the Financial District of Manhattan in New York City.  It sits across Nassau Street from Federal Hall National Memorial, across Wall Street from the New York Stock Exchange and diagonally across from the original headquarters of J. P. Morgan & Company.  It was built in 1910-12 and was designed by Trowbridge & Livingston in the neoclassical style as the headquarters for Bankers Trust.  An addition with Art Deco detailing, designed by Shreve, Lamb & Harmon, was constructed in 1931-33.  The stepped pyramid at the building's top is a noted part of the downtown skyline, and became the logo for Bankers Trust, which sold the building in 1937.

Nassau Street (Manhattan): Nassau Street is a street in the Financial District of New York City.  It is located near Pace University and City Hall.  It starts at Wall Street and runs north to Spruce Street at the foot of the Brooklyn Bridge, located one block east of Broadway and east of Park Row, in the borough of Manhattan.

Supporting paragraphs: Central Park Tower 40 Wall Street
Answer: 40 Wall Street