Triple

Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).

Phrase: U-boat campaign | Statement: [European theatre of World War I, hasPart, U-boat campaign]

Target entity: U-boat campaign
Context triple: [European theatre of World War I, hasPart, U-boat campaign]

• A. Battle of the Atlantic
  The Battle of the Atlantic was the prolonged World War II naval campaign in which Allied and Axis forces fought for control of vital shipping routes across the Atlantic Ocean.
• B. Mediterranean U-boat campaign chosen
  The Mediterranean U-boat campaign was a World War II German submarine offensive aimed at disrupting Allied naval and supply routes across the Mediterranean Sea.
• C. Bay of Biscay anti-submarine campaign
  The Bay of Biscay anti-submarine campaign was a World War II air–sea offensive focused on hunting and destroying German U-boats transiting through the Bay of Biscay between their Atlantic patrol areas and bases in occupied France.
• D. Operation Rheinübung
  Operation Rheinübung was the World War II German naval sortie in May 1941 in which the battleship Bismarck and cruiser Prinz Eugen attempted to break into the Atlantic to attack Allied shipping, culminating in Bismarck’s famous final battle and sinking.
• E. World War II in the Baltic Sea
  World War II in the Baltic Sea was a major naval theater where Axis and Allied forces, including the Finnish Navy, contested control of crucial maritime routes, coastal areas, and strategic islands in Northern Europe.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.