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Answer: Context: The Sydney/Melbourne Express was an overnight intercapital passenger train service that operated between the Australia's largest two cities, Sydney and Melbourne, between August 1986 and November 1993. Operated jointly by State Rail Authority and V/Line the name depended on the direction of travel, with the train nicknamed the 'Sex' or 'Mex'.

Hypothesis: The train was in operation in 1989

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Answer: Context: A giant planet is any massive planet. They are usually primarily composed of low-boiling-point materials (gases or ices), rather than rock or other solid matter, but massive solid planets can also exist. There are four known giant planets in the Solar System: Jupiter, Saturn, Uranus and Neptune. Many extrasolar giant planets have been identified orbiting other stars.

Hypothesis: The four known giant planets in the Solar System are of many other giant planets.

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Answer: Context: Pavel Sergeyevich Alexandrov (Russian: ), sometimes romanized Paul Alexandroff or Aleksandrov (7 May 1896 16 November 1982), was a Soviet mathematician. He wrote about three hundred papers, making important contributions to set theory and topology.

Hypothesis: Pavel Sergeyevich Alexandrov wrote about three hundred papers, but made no significant contribution to set theory and topology.

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Answer:
Context: Grimsby Town Football Club is a professional football club based in the town of Cleethorpes, Lincolnshire, England, that competes in League Two, the fourth-highest division overall in the English football league system. Nicknamed "the Mariners", the club was founded as Grimsby Pelham in 1878, changed its name to Grimsby Town a year later and moved to its current stadium, Blundell Park, in 1898.

Hypothesis: Grimsby Town Football Club is an all male football club based in the down of Cleethorpes, Lincolnshire, England, that competes in League Two, the fourth-highest division overall in the English football league system.