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Answer: Context: PSRB1919+21 is a pulsar with a period of 1.3373 seconds and a pulse width of 0.04 seconds. Discovered by Jocelyn Bell Burnell and Antony Hewish on November 28, 1967, it is the first discovered radio pulsar. The power and regularity of the signals were briefly thought to resemble an extraterrestrial beacon, leading the source to be nicknamed LGM-1 (for "little green men").

Hypothesis: The radio pulsar LGM-1 has a period of 1.3373 seconds and a pulse width of 0.04 seconds.

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Answer: Context: Achel Brewery or Brouwerij der Sint-Benedictusabdij de Achelse Kluis is a Belgian Trappist brewery, and the smallest of the Belgian Trappist breweries. It is located in the Abbey of Saint Benedict in the Belgian municipality of Hamont-Achel. It brews five Trappist beers.

Hypothesis: Achel Brewery or Brouwerij der Sint-Benedictusabdij de Achelse Kluis is preferred by locals.

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Answer: Context: Fleetwood Mac are a British-American rock band, formed in London in 1967. The band have sold more than 100 million records worldwide, making them one of the world's best-selling bands of all time. In 1998, selected members of Fleetwood Mac were inducted into the Rock and Roll Hall of Fame, and received the Brit Award for Outstanding Contribution to Music.

Hypothesis: Fleetwood Mac has sold records worldwide.

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Answer:
Context: The Last Witness () is a 1980 South Korean mystery film directed by Lee Doo-yong, based on the 1974 novel of the same title by Kim Seong-jong. When the film was originally released, a 40-minute portion was cut due to censorship laws of that time. A remake with the same title was released in 2001.

Hypothesis: The Last Witness is a film based on a book.