Triple

Target entity: Second Kamchatka Expedition
Context triple: [Great Northern Expedition, alsoKnownAs, Second Kamchatka Expedition]

• A. Second Kamchatka Expedition chosen
  The Second Kamchatka Expedition was a vast 18th-century Russian imperial exploration project led by Vitus Bering that mapped much of Siberia and the North Pacific, greatly expanding geographic and scientific knowledge of the region.
• B. First Kamchatka Expedition
  The First Kamchatka Expedition was an early 18th-century Russian naval and scientific voyage led by Vitus Bering to explore and map the waters and coastlines of northeastern Siberia and the North Pacific.
• C. Amur River expedition
  The Amur River expedition was a 17th-century Russian exploratory and military campaign led by Yerofey Khabarov that advanced Russian influence into the Amur River basin in the Far East.
• D. Chelyuskin expedition
  The Chelyuskin expedition was a 1933–1934 Soviet Arctic voyage whose ship became trapped and crushed by ice, leading to a dramatic mass rescue that became a major propaganda triumph for the USSR.
• E. 1843–1845 Siberian expedition
  The 1843–1845 Siberian expedition was a major scientific journey led by Alexander von Middendorff that explored and documented the geography, climate, and natural history of northern and eastern Siberia.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.