RV Yokosuka

Target entity: RV Yokosuka
Context triple: [Challenger Deep, surveyedBy, RV Yokosuka]

• A. Japanese aircraft carrier Ryūjō
  The Japanese aircraft carrier Ryūjō was a light carrier of the Imperial Japanese Navy that saw extensive service in the early Pacific War before being sunk at the Battle of the Eastern Solomons in 1942.
• B. Japanese aircraft carrier Hōshō
  The Japanese aircraft carrier Hōshō was the world’s first purpose-built aircraft carrier to enter service, playing a pioneering role in the development of naval aviation for the Imperial Japanese Navy.
• C. Japanese battleship Mutsu
  Japanese battleship Mutsu was a Nagato-class dreadnought of the Imperial Japanese Navy, notable for its powerful 16-inch guns and its accidental magazine explosion and sinking in 1943.
• D. IJN battleship Yamashiro
  IJN battleship Yamashiro was a Japanese Fuso-class dreadnought battleship that served in the Imperial Japanese Navy and was sunk during the Battle of Surigao Strait in World War II.
• E. Yamato
  Yamato was a World War II-era Japanese battleship, famed as one of the largest and most heavily armed battleships ever constructed.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: RV Yokosuka
Target entity description: RV Yokosuka is a Japanese research vessel operated by JAMSTEC, best known for supporting deep-sea exploration missions, including dives to the Challenger Deep with the submersible Shinkai 6500.

• A. Japanese aircraft carrier Ryūjō
  The Japanese aircraft carrier Ryūjō was a light carrier of the Imperial Japanese Navy that saw extensive service in the early Pacific War before being sunk at the Battle of the Eastern Solomons in 1942.
• B. Japanese aircraft carrier Hōshō
  The Japanese aircraft carrier Hōshō was the world’s first purpose-built aircraft carrier to enter service, playing a pioneering role in the development of naval aviation for the Imperial Japanese Navy.
• C. Japanese battleship Mutsu
  Japanese battleship Mutsu was a Nagato-class dreadnought of the Imperial Japanese Navy, notable for its powerful 16-inch guns and its accidental magazine explosion and sinking in 1943.
• D. IJN battleship Yamashiro
  IJN battleship Yamashiro was a Japanese Fuso-class dreadnought battleship that served in the Imperial Japanese Navy and was sunk during the Battle of Surigao Strait in World War II.
• E. Yamato
  Yamato was a World War II-era Japanese battleship, famed as one of the largest and most heavily armed battleships ever constructed.
• F. None of above. chosen