Question: The Decker Building included a factory by which American artist on the 6th floor from 1968-73?

Context paragraphs:
National Video Center: The National Video Center was a video production company with studios in Washington, DC, Boston, Atlanta, Connecticut and New York City until June 2002.  National Recording Studios opened in 1959 in Manhattan at 730 Fifth Avenue between 56th and 57th Streets - Recording Studios were on the 6th floor which included Studio B, and insert shoot stage for the fledgling National Video, located on the 11th floor.  Original owners were Irv Kaufman, Hal Lustig, and brother Carl Lustig.

The Factory: The Factory was Andy Warhol's New York City studio, which had three different locations between 1962 and 1984.  The original Factory was on the fifth floor at 231 East 47th Street, in Midtown Manhattan.  The rent was one hundred dollars per year.  Warhol left in 1967 when the building was scheduled to be torn down to make way for an apartment building.  He then relocated his studio to the sixth floor of the Decker Building at 33 Union Square West near the corner of East 16th Street, where he was shot in 1968 by Valerie Solanas.  The Factory was revamped and remained there until 1973.  It moved to 860 Broadway at the north end of Union Square.  Although this space was much larger, not much filmmaking took place there.  In 1984 Warhol moved his remaining ventures, no longer including filming, to 22 East 33rd Street, a conventional office building.

Thirteenth floor: The thirteenth floor is a designation of a level of a multi-level building that is often omitted in countries where the number 13 is considered unlucky.  Omitting the 13th floor may take a variety of forms; the most common include denoting what would otherwise be considered the thirteenth floor as level 14, giving the thirteenth floor an alternate designation such as "12A" or "M" (the thirteenth letter of the Latin alphabet), or closing the 13th floor to public occupancy or access (e.g., by designating it as a mechanical floor).

Synovus Centre: Synovus Centre is an office building in Downtown Columbus, Georgia which serves as the headquarters of regional banking and financial services company Synovus.  It was built at a cost of 18 million dollars in 2003 and has views of the Chattahoochee River.  The building is a condominium and contains 120,000 square feet (11,000 m²), and 5 floors.  Synovus occupies the 5th floor, half of the 4th floor and the 2nd floor and parts of the 1st floor.  The 3rd floor of the building is owned by Page, Scrantom, Sprouse, Tucker & Ford, P.C., the largest law firm in Columbus.  A portion of the 4th floor of the building is leased to another local law firm, Pope, McGlamry, Kilpatrick & Morrison, LLP.

Andy Warhol: Andy Warhol ( ; born Andrew Warhola; August 6, 1928 – February 22, 1987) was an American artist, director and producer who was a leading figure in the visual art movement known as pop art.  His works explore the relationship between artistic expression, celebrity culture, and advertising that flourished by the 1960s, and span a variety of media, including painting, silkscreening, photography, film, and sculpture.  Some of his best known works include the silkscreen paintings "Campbell's Soup Cans" (1962) and "Marilyn Diptych" (1962), the experimental film "Chelsea Girls" (1966), and the multimedia events known as the "Exploding Plastic Inevitable" (1966–67).

Decker Building: The Decker Building—periodically referred to as the Union Building—is located at 33 Union Square West in Manhattan, New York City.  Built in 1892 for the Decker Brothers piano company according to designs by the radical anarchist architect John H. Edelmann, working out of the offices of Alfred Zucker, it replaced the earlier Decker Building on the same lot, designed by Leopold Eidlitz and built in 1869.  Andy Warhol had his Factory on the sixth floor of this building from 1968 through 1973.  It is also where Valerie Solanas shot Warhol and art critic and curator Mario Amaya in 1968.

Shacolas Tower: Shacolas Tower is a highrise building completed in the 1990s, which is located in the old town of Nicosia, the capital of Cyprus.  It is currently the fifth tallest building in Cyprus and third in Nicosia.  It is considered a hallmark of the city's old town.  The first 5 floors are H&M department stores and the 6th floor is a cafeteria offering a panoramic view of the old city of Nicosia.  The 11th floor is an observatory and a museum overlooking the whole capital.  There are telescopes, binoculars and a recorded feature on the history of the capital.

Decker Brothers: Decker Brothers was an American piano manufacturer located in the John H. Edelmann designed Decker Building in New York, New York, on the national register of historic places.  The company began to produce pianos in 1865, created by David Decker and John Decker, after the brothers were awarded many piano patents.

Claremont City Hall: Claremont City Hall, also known as the Claremont Opera House, is located at 58 Opera House Square in the heart of Claremont, New Hampshire, United States.  The monumental Italian Renaissance Revival two-story brick and brownstone building was designed by New York City architect Charles A. Rich, an alumnus of nearby Dartmouth College, and built between 1895 and 1897.  Hira R. Beckwith, an architect in Claremont, was the contractor.  Many of the construction materials for the building came from the surrounding region.  The foundation consists of Green Mountain rock, and the base was dressed Connecticut River brownstone from Springfield, Massachusetts.  The major part of the exterior is built from nearly one million bricks from Lebanon, New Hampshire.  The original design of the building included first floor that housed a meeting space seating 700, while the upper floor housed the "opera house" (auditorium), which seated nearly 1,000 and included a stage adequate for mounting theatrical productions.  Rich and Beckwith spent two years and $62,000 to construct the building as a regional center for entertainment, cultural, community and political events.  The building was dedicated on June 22, 1897.

Nightmare on the 13th Floor: The Wessex Hotel in Los Angeles is a Victorian hotel, built in 1898 at a height of 16 floors, including a 13th floor.  Early in its history, serial killer Avery Block brings his friends to the 13th floor of the Wessex where he proceeds to kill them with a fire ax hoping to achieve immortality by the taking of others' lives.  Due to the murders, the 13th floor is sealed off in October 1901 and a frieze is erected around the building covering the floor.

Supporting paragraphs: Decker Building Andy Warhol
Answer: Andy Warhol