Question: How many Smithsonian Museums are there in the place where the president when we walked the moon worked?

full_context: Document 1: Federal Bureau of Investigation: Beginning in the 1940s and continuing into the 1970s, the bureau investigated cases of espionage against the United States and its allies. Eight Nazi agents who had planned sabotage operations against American targets were arrested, and six were executed (Ex parte Quirin) under their sentences. Also during this time, a joint US/UK code-breaking effort (the Venona project)—with which the FBI was heavily involved—broke Soviet diplomatic and intelligence communications codes, allowing the US and British governments to read Soviet communications. This effort confirmed the existence of Americans working in the United States for Soviet intelligence. Hoover was administering this project but failed to notify the Central Intelligence Agency (CIA) until 1952. Another notable case is the arrest of Soviet spy Rudolf Abel in 1957. The discovery of Soviet spies operating in the US allowed Hoover to pursue his longstanding obsession with the threat he perceived from the American Left, ranging from Communist Party of the United States of America (CPUSA) union organizers to American liberals.
Document 2: Apollo 11: An estimated one million spectators watched the launch of Apollo 11 from the highways and beaches vicinity of the launch site. Dignitaries included the Chief of Staff of the United States Army, General William Westmoreland, four cabinet members, 19 state governors, 40 mayors, 60 ambassadors and 200 congressmen. Vice President Spiro Agnew viewed the launch with the former president, Lyndon B. Johnson and his wife Lady Bird Johnson. Around 3,500 media representatives were present. About two - thirds were from the United States; the rest came from 55 other countries. The launch was televised live in 33 countries, with an estimated 25 million viewers in the United States alone. Millions more around the world listened to radio broadcasts. President Richard Nixon viewed the launch from his office in the White House with his NASA liaison officer, Apollo astronaut Frank Borman.
Document 3: Federal Bureau of Investigation: The FBI has maintained files on numerous people, including celebrities such as Elvis Presley, Frank Sinatra, John Denver, John Lennon, Jane Fonda, Groucho Marx, Charlie Chaplin, the band MC5, Lou Costello, Sonny Bono, Bob Dylan, Michael Jackson, and Mickey Mantle. The files were collected for various reasons. Some of the subjects were investigated for alleged ties to the Communist party (Charlie Chaplin and Groucho Marx), or in connection with antiwar activities during the Vietnam War (John Denver, John Lennon, and Jane Fonda). Numerous celebrity files concern threats or extortion attempts against them (Sonny Bono, John Denver, John Lennon, Elvis Presley, Michael Jackson, Mickey Mantle, Groucho Marx, and Frank Sinatra).
Document 4: Apollo 11: Apollo 11 was the spaceflight that landed the first two people on the Moon. Mission commander Neil Armstrong and pilot Buzz Aldrin, both American, landed the lunar module Eagle on July 20, 1969, at 20: 17 UTC. Armstrong became the first person to step onto the lunar surface six hours after landing on July 21 at 02: 56: 15 UTC; Aldrin joined him about 20 minutes later. They spent about two and a quarter hours together outside the spacecraft, and collected 47.5 pounds (21.5 kg) of lunar material to bring back to Earth. Michael Collins piloted the command module Columbia alone in lunar orbit while they were on the Moon's surface. Armstrong and Aldrin spent 21.5 hours on the lunar surface before rejoining Columbia in lunar orbit.
Document 5: Apollo 11: The astronauts planted a specially designed U.S. flag on the lunar surface, in clear view of the TV camera. Aldrin remembered, ``Of all the jobs I had to do on the Moon the one I wanted to go the smoothest was the flag raising. ''But the astronauts struggled with the telescoping rod and could only jam the pole a couple of inches into the hard lunar surface. Aldrin was afraid it might topple in front of TV viewers. But he gave`` a crisp West Point salute''. Before Aldrin could take a photo of Armstrong with the flag, President Richard Nixon spoke to them through a telephone - radio transmission which Nixon called ``the most historic phone call ever made from the White House. ''Nixon originally had a long speech prepared to read during the phone call, but Frank Borman, who was at the White House as a NASA liaison during Apollo 11, convinced Nixon to keep his words brief, to respect the lunar landing as Kennedy's legacy.
Document 6: Apollo 11: Apollo 11 was the spaceflight that landed the first two humans on the Moon. Mission commander Neil Armstrong and pilot Buzz Aldrin, both American, landed the lunar module Eagle on July 20, 1969, at 20: 18 UTC. Armstrong became the first to step onto the lunar surface six hours after landing on July 21 at 02: 56: 15 UTC; Aldrin joined him about 20 minutes later. They spent about two and a quarter hours together outside the spacecraft, and collected 47.5 pounds (21.5 kg) of lunar material to bring back to Earth. Michael Collins piloted the command module Columbia alone in lunar orbit while they were on the Moon's surface. Armstrong and Aldrin spent just under a day on the lunar surface before rejoining Columbia in lunar orbit.
Document 7: Moon landing: Clickable map of the locations of all successful soft landings on the Moon to date (top). Luna programme (USSR) Chang'e 3 (China) Surveyor program (USA) Apollo program (USA) Dates are landing dates in Coordinated Universal Time. Except for the Apollo program, all soft landings were unmanned. Luna 2 was the first man - made object to reach the surface of the Moon (bottom - left). Still frame from a video transmission, taken moments before Neil Armstrong became the first human to step onto the surface of the Moon, at 02: 56 UTC on 21 July 1969. An estimated 500 million people worldwide watched this event, the largest television audience for a live broadcast at that time.
Document 8: Federal Bureau of Investigation: During the September 11, 2001 attacks on the World Trade Center, FBI agent Leonard W. Hatton Jr. was killed during the rescue effort while helping the rescue personnel evacuate the occupants of the South Tower and stayed when it collapsed. Within months after the attacks, FBI Director Robert Mueller, who had been sworn in a week before the attacks, called for a re-engineering of FBI structure and operations. He made countering every federal crime a top priority, including the prevention of terrorism, countering foreign intelligence operations, addressing cyber security threats, other high-tech crimes, protecting civil rights, combating public corruption, organized crime, white-collar crime, and major acts of violent crime.
Document 9: New Delhi: New Delhi is home to Indira Gandhi Memorial Museum, National Gallery of Modern Art, National Museum of Natural History, National Rail Museum, National Handicrafts and Handlooms Museum, National Philatelic Museum, Nehru Planetarium, Shankar's International Dolls Museum. and Supreme Court of India Museum.
Document 10: Angelo Lano: Angelo J. Lano was an American field agent for the Federal Bureau of Investigation in Washington DC, notable for his work heading the investigation of, and appearing as a witness for, the Watergate scandal surrounding President Richard M. Nixon. Lano was one of a number of FBI agents who was falsely accused as a source of information for Carl Bernstein and the "Washington Post" during the investigation, which helped shift White House suspicions away from Mark Felt, who was revealed as informant Deep Throat on May 31, 2005.
Document 11: Philadelphia: Philadelphia's major science museums include the Franklin Institute, which contains the Benjamin Franklin National Memorial; the Academy of Natural Sciences; the Mütter Museum; and the University of Pennsylvania Museum of Archaeology and Anthropology. History museums include the National Constitution Center, the Atwater Kent Museum of Philadelphia History, the National Museum of American Jewish History, the African American Museum in Philadelphia, the Historical Society of Pennsylvania, the Grand Lodge of Free and Accepted Masons in the state of Pennsylvania and The Masonic Library and Museum of Pennsylvania and Eastern State Penitentiary. Philadelphia is home to the United States' first zoo and hospital, as well as Fairmount Park, one of America's oldest and largest urban parks.
Document 12: Ken W. Clawson: Ken Wade Clawson (August 16, 1936 – December 18, 1999) was an American journalist, best known as a spokesman for U.S. President Richard Nixon at the time of the Watergate scandal. He was promoted from Nixon's deputy director of communications to director in early 1974 as the scandal continued to unfold, and following Nixon's resignation in August 1974, Clawson continued in the same role for three months under President Gerald Ford.
Document 13: Smithsonian American Art Museum: The Smithsonian American Art Museum first opened to the public in its current location in 1968 when the Smithsonian renovated the Old Patent Office Building in order to display its collection of fine art. American Art's main building, the Old Patent Office Building, is a National Historic Landmark located in Washington, D.C.'s downtown cultural district. It is considered an example of Greek Revival architecture in the United States. It was designed by architects Robert Mills, and Thomas U. Walter.
Document 14: National Museum of Natural History: The National Museum of Natural History is a natural - history museum administered by the Smithsonian Institution, located on the National Mall in Washington, D.C., United States. It has free admission and is open 364 days a year. In 2016, with 7.1 million visitors, it was the fourth most visited museum in the world and the most visited natural - history museum in the world. Opened in 1910, the museum on the National Mall was one of the first Smithsonian buildings constructed exclusively to hold the national collections and research facilities. The main building has an overall area of 1,500,000 square feet (140,000 m) with 325,000 square feet (30,200 m) of exhibition and public space and houses over 1,000 employees.
Document 15: List of Smithsonian museums: The Smithsonian museums are the most widely visible part of the United States' Smithsonian Institution and consist of nineteen museums and galleries as well as the National Zoological Park. Seventeen of these collections are located in Washington D.C., with eleven of those located on the National Mall. The remaining ones are in New York City and Chantilly, Virginia. As of 2010, one museum, the Arts and Industries Building, is closed in preparation for a substantial renovation, and its newest museum building, the National Museum of African American History and Culture, opened in 2016.
ground_truth: Seventeen
sub_queries: who was president when we walked on the moon Answer: Richard Nixon
Richard Nixon >> work location Answer: Washington
how many smithsonian museums are there in Washington Answer: Seventeen