Sputnik 2

Target entity: Sputnik 2
Context triple: [Vanguard 1, precededBy, Sputnik 2]

• A. Sputnik 1
  Sputnik 1 was the first artificial Earth satellite, launched by the Soviet Union in 1957 and marking the beginning of the space age.
• B. Vostok 1
  Vostok 1 was the Soviet spacecraft that carried Yuri Gagarin on the first human spaceflight, marking humanity’s inaugural journey into outer space in 1961.
• C. Voskhod spacecraft
  The Voskhod spacecraft was a Soviet crewed space capsule that succeeded Vostok and enabled milestones such as the first multi-person crewed mission and the first spacewalk during the early space race.
• D. Luna 2
  Luna 2 was a Soviet space probe that became the first human-made object to reach the Moon, marking a major milestone in early space exploration.
• E. Luna 1
  Luna 1 was a Soviet spacecraft launched in 1959 that became the first human-made object to reach the vicinity of the Moon and enter a heliocentric orbit.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Sputnik 2
Target entity description: Sputnik 2 was a Soviet spacecraft launched in 1957 that became famous for carrying Laika, the first living creature to orbit the Earth.

• A. Sputnik 1
  Sputnik 1 was the first artificial Earth satellite, launched by the Soviet Union in 1957 and marking the beginning of the space age.
• B. Vostok 1
  Vostok 1 was the Soviet spacecraft that carried Yuri Gagarin on the first human spaceflight, marking humanity’s inaugural journey into outer space in 1961.
• C. Voskhod spacecraft
  The Voskhod spacecraft was a Soviet crewed space capsule that succeeded Vostok and enabled milestones such as the first multi-person crewed mission and the first spacewalk during the early space race.
• D. Luna 2
  Luna 2 was a Soviet space probe that became the first human-made object to reach the Moon, marking a major milestone in early space exploration.
• E. Luna 1
  Luna 1 was a Soviet spacecraft launched in 1959 that became the first human-made object to reach the vicinity of the Moon and enter a heliocentric orbit.
• F. None of above. chosen