Question: Which building is still under construction, 30 Hudson Yards or the New York World Building?

full_context: Document 1: New York Evening Post Building: The New York Evening Post Building, also known as the New York Post Building or the Post Towers, is a historic commercial building located in Lower Manhattan, New York City, New York. The building was designed by noted architect Horace Trumbauer and built in 1926.
Document 2: 10 Hudson Yards: 10 Hudson Yards is an office building that was completed in 2016 in Manhattan's West Side. Located near Hell's Kitchen, Chelsea and the Penn Station area, the building is a part of the Hudson Yards urban renewal project, a plan to redevelop the Metropolitan Transportation Authority's West Side Yard. Coach, Inc. is the anchor tenant. During planning, the tower was known as the South Tower or Tower C.
Document 3: Early skyscrapers: The early skyscrapers were a range of tall, commercial buildings built between 1884 and 1939, predominantly in the American cities of New York City and Chicago. Cities in the United States were traditionally made up of low-rise buildings, but significant economic growth after the Civil War and increasingly intensive use of urban land encouraged the development of taller buildings beginning in the 1870s. Technological improvements enabled the construction of fireproofed iron-framed structures with deep foundations, equipped with new inventions such as the elevator and electric lighting. These made it both technically and commercially viable to build a new class of taller buildings, the first of which, Chicago's 138 ft tall Home Insurance Building, opened in 1884. Their numbers grew rapidly and by 1888 they were being labelled "skyscrapers".
Document 4: Old New York Evening Post Building: The Old "New York Evening Post" Building is the former office and printing plant of the "New York Evening Post" newspaper located at 20 Vesey Street between Church Street and Broadway in the Financial District of Manhattan, New York City. It was built in 1906-07 and was designed by architect Robert D. Kohn for Oswald Garrison Villard, who owned the Post at the time, and is considered to be "one of the few outstanding Art nouveau buildings" ever constructed in the United States.
Document 5: 30 Hudson Yards: 30 Hudson Yards (also the North Tower) is a super tall office building currently under construction in the West Side area of Manhattan. Located near Hell's Kitchen, Chelsea and the Penn Station area, the building is a part of the Hudson Yards Redevelopment Project, a plan to redevelop the Metropolitan Transportation Authority's West Side Yards.
Document 6: 50 Hudson Yards: 50 Hudson Yards is a building being planned as part of the Hudson Yards Redevelopment Project in Hell's Kitchen, Manhattan. The planned building is to be located to the north of 30 Hudson Yards, and on the east side of the Hudson Park and Boulevard, adjacent to 55 Hudson Yards. It will total 2.9 million square feet of commercial space. At the SW corner of 34th Street and 10th Avenue, it will replace the drive-thru McDonald's that had long-occupied the space.
Document 7: Hudson Yards, Manhattan: Hudson Yards is a large-scale redevelopment program that is planned, funded and constructed under a set of agreements among the City of New York, the State of New York, and the Metropolitan Transportation Authority, with the aim of expanding the Midtown Manhattan Business District westward to the Hudson River. The program includes a major rezoning of the Far West Side, an extension of the New York City Subway's trains to a new subway station at 34th Street and 11th Avenue, a renovation and expansion of the Jacob K. Javits Convention Center, and a financing plan to fund the various components.
Document 8: 15 Hudson Yards: 15 Hudson Yards is a residential building currently under construction on Manhattan's West Side. Located in Chelsea near Hell's Kitchen Penn Station area, the building is a part of the Hudson Yards project, a plan to redevelop the Metropolitan Transportation Authority's West Side Yards. The tower started construction on December 4, 2014.
Document 9: Hedden Construction Company: Some of the finest buildings in New Jersey, New York City, and other large eastern cities were built by the Hedden Construction Company, one of the largest construction companies operating in Newark in the very early 1900s. Among the most notable is the Metropolitan Life Insurance Company Tower located at One Madison Avenue in New York, NY. The tower was the world's tallest building from 1909 to 1913 and home to the Hedden Construction Company's main offices located on the 36th and 37th floors. During this prosperous period over $40,000,000 in construction contracts and payments were collected by the firm.
Document 10: Singer Building: The Singer Building or Singer Tower, at Liberty Street and Broadway in Lower Manhattan's Financial District, in the U.S. state of New York, was a 47-story office building completed in 1908 as the headquarters of the Singer Manufacturing Company. It was the tallest building in the world from 1908 to 1909. It was torn down in 1968, together with the adjacent City Investing Building, and is now the site of One Liberty Plaza. When it was razed, it became the tallest building ever to be demolished, and is still the third-tallest building ever to be destroyed (after the World Trade Center towers) and the tallest to be purposely demolished by its owner.
Document 11: 35 Hudson Yards: 35 Hudson Yards (also Tower E or Equinox Tower) is a mixed-use building currently under construction in Manhattan's West Side and is slated to be composed of apartment units and a hotel. Located near Hell's Kitchen, Chelsea, and the Penn Station area, the building is a part of the Hudson Yards project, a plan to redevelop the Metropolitan Transportation Authority's West Side Yards.
Document 12: New York World Building: "The New York World" Building was a skyscraper in New York City designed by early skyscraper specialist George Browne Post and built in 1890 to house the now-defunct newspaper, "The New York World". It was razed in 1955.
Document 13: Manhattan West: Manhattan West is a 5400000 sqft mixed-use development by Brookfield Properties. The project consists of two large office towers and two smaller residential towers, as well as a 1.5 acre public park. The towers will be built on a platform over Penn Station storage tracks along Ninth Avenue. The buildings will be built close to the developing Hudson Yards region between 31st and 33rd streets. These two buildings have been proposed as of 2010 . Upon its completion the taller west tower will extend 995 ft up to its roof and will be one of the tallest buildings in New York City and the world.
Document 14: The New York Times Building: The New York Times Building is a skyscraper on the west side of Midtown Manhattan, New York City that was completed in 2007. Its chief tenant is The New York Times Company, publisher of "The New York Times" as well as the "International New York Times", and other newspapers. Construction was by a joint venture of The New York Times Company, Forest City Ratner (Forest City Enterprises's New York subsidiary), and ING Real Estate.
Document 15: 55 Hudson Yards: 55 Hudson Yards (also known as One Hudson Yards or One Hudson Boulevard) is a future tower just outside the Hudson Yards Redevelopment Project. Located in Chelsea, Manhattan, it will add a combined 4000000 sqft of space to the Hudson Yards project, along with 50 Hudson Yards, even though the two buildings will be located outside of the redevelopment site itself.
ground_truth: 30 Hudson Yards