Triple

Target entity: Japan Coast Guard (Japanese side)
Context triple: [Sōya Strait, governedBy, Japan Coast Guard (Japanese side)]

• A. Japan Coast Guard chosen
  The Japan Coast Guard is Japan’s maritime safety and security agency responsible for law enforcement, search and rescue, and navigation safety in the country’s territorial waters and surrounding seas.
• B. Japan Maritime Self-Defense Force
  The Japan Maritime Self-Defense Force is Japan’s post–World War II naval branch responsible for maritime defense, security, and disaster relief operations under the country’s pacifist constitution.
• C. Japan Ground Self-Defense Force
  The Japan Ground Self-Defense Force is the land warfare branch of Japan’s Self-Defense Forces, responsible for the country’s ground-based military defense under a strictly defensive post–World War II security policy.
• D. Japan Air Self-Defense Force
  The Japan Air Self-Defense Force is the aviation branch of Japan’s Self-Defense Forces, responsible for the country’s air defense and airspace security.
• E. Japan Self-Defense Forces
  The Japan Self-Defense Forces are Japan’s post–World War II military organization, maintained strictly for defensive purposes under the country’s pacifist constitution.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.