Question: What is the birthplace of the artist who created Marilyn Diptych?

full_context: Document 1: Thirteen Most Wanted Men: Thirteen Most Wanted Men was a large mural created by Andy Warhol for the New York State Pavilion at the 1964 World's Fair at Flushing Meadows, New York. The mural was painted over with silver paint before the fair opened, probably due to official objections, but other reasons have been suggested.
Document 2: Brady Street Bridge: The Brady Street Bridge, also known as the South 22nd Street Bridge, was a steel bowstring arch bridge in Pittsburgh, Pennsylvania, which crossed over the Monongahela River at South 22nd Street. It was replaced by the Birmingham Bridge in 1976, and was demolished on May 29, 1978. The bridge's main span was a tied arch with a suspended road deck, with two through-truss side spans, carrying two traffic lanes between Brady Street on the Pittsburgh side and South 22nd Street on the south side. Approach viaducts were built at either end. The bridge was built by the Schultz Bridge and Iron Company.
Document 3: Marilyn Diptych: The Marilyn Diptych (1962) is a silkscreen painting by American pop artist Andy Warhol depicting Marilyn Monroe. The piece is one of the artist's most noted works. It is in the collection of the Tate.
Document 4: South Tenth Street Bridge: South Tenth Street Bridge, most often called the Tenth Street Bridge, but officially dubbed the Philip Murray Bridge, is a suspension bridge spanning the Monongahela River in Downtown Pittsburgh, Pennsylvania. The bridge was renamed on Labor Day 2007 for Philip Murray, the first president of the United Steelworkers of America.
Document 5: 30th Street Bridge: The 30th Street Bridge, is a girder bridge that carries vehicular traffic across the Allegheny River between the Pittsburgh neighborhoods of Troy Hill and Herrs Island (known by the moniker of Washington's Landing). This is the fourth bridge that has stood on this site. A wooden 19th Century bridge was washed away during an 1882 flood. This was replaced by an arch bridge that spanned the entire width of the Allegheny River; after a 1921 fire destroyed the span across the main channel, the 31st Street Bridge was constructed as a replacement, and this bridge was again relegated to taking traffic to Herrs Island. A 1939 truss bridge then stood on this site, and it was replaced by the current structure as part of the redevelopment of the island to feature condominiums and a business park instead of warehouses and stockyards.
Document 6: Highland Park Bridge (1902): The 1902 Highland Park Bridge was a cantilever through truss that carried two streetcar tracks across the Allegheny River and Sixmile Island between the Pittsburgh neighborhood of Highland Park and Sharpsburg, Pennsylvania. It was replaced by the Highland Park Bridge in 1938.
Document 7: Men in Her Life (painting): Men in Her Life is a 1962 painting by Andy Warhol. It is a black and white painting inspired by the life of Elizabeth Taylor, a seven foot tall creation of the artist.
Document 8: Andy Warhol Bridge: The bridge was renamed for Warhol on March 18, 2005, as part of the tenth anniversary celebration for the Andy Warhol Museum. The museum is nearby at 117 Sandusky Street, a street which leads to the bridge from the north side of the river on Pittsburgh's North Shore.
Document 9: Shot Marilyns: The Shot Marilyns is a work of art produced in 1964 by Andy Warhol. It consists of four canvases, each a square measuring 40 inches and each consisting of a painting of Marilyn Monroe, each shot through in the forehead by a single bullet.
Document 10: Triple Elvis: Triple Elvis is a 1963 painting of Elvis Presley by the American artist Andy Warhol. The photographic image of Elvis used by Warhol as a basis for this work, taken from a publicity still from the movie "Flaming Star", has become iconic and synonymous with the singer.
Document 11: Whaam!: Whaam! is a 1963 diptych painting by the American artist Roy Lichtenstein. It is one of the best-known works of pop art, and among Lichtenstein's most important paintings. "Whaam!" was first exhibited at the Leo Castelli Gallery in New York City in 1963, and purchased by the Tate Gallery, London, in 1966. It has been on permanent display at Tate Modern since 2006.
Document 12: Washington Crossing Bridge (Pittsburgh): The Washington Crossing Bridge, commonly known as the Fortieth Street Bridge, is an arch bridge that carries vehicular traffic across the Allegheny River between the Pittsburgh neighborhood of Lawrenceville and the suburb of Millvale.
Document 13: Petroleum Street Bridge: The Petroleum Street Bridge is a girder bridge connecting the North Side and South Side neighborhoods of Oil City, Pennsylvania and crosses the Allegheny River. The bridge sits just downstream from the confluence of Oil Creek and the Allegheny River. The 1995 structure carries two lanes of U.S. Route 62 and was built during a decade of major refurbishments of Upper Allegheny crossings. Previously, a 1910 truss bridge stood on the site; this structure replaced an earlier wooden bridge.
Document 14: Campbell's Soup Cans: Campbell's Soup Cans, which is sometimes referred to as 32 Campbell's Soup Cans, is a work of art produced between November 1961 and March or April 1962 by Andy Warhol. It consists of thirty-two canvases, each measuring in height × in width and each consisting of a painting of a Campbell's Soup can—one of each of the canned soup varieties the company offered at the time. The individual paintings were produced by a printmaking method—the semi-mechanized screen printing process, using a non-painterly style. "Campbell's Soup Cans"' reliance on themes from popular culture helped to usher in pop art as a major art movement in the United States.
Document 15: 31st Street Bridge: The William Raymond Prom Memorial Bridge, commonly known as the 31st Street Bridge, is an arch bridge that carries vehicular traffic across the Allegheny River between the Pittsburgh neighborhoods of Troy Hill and the Strip District. The bridge passes over, but does not serve, Washington's Landing, which is connected to the mainland by the 30th Street Bridge. Sidewalks along the bridge feature viewing platforms.
ground_truth: Pittsburgh
sub_queries: Who developed Marilyn Diptych? Answer: Andy Warhol
Andy Warhol >> place of birth Answer: Pittsburgh