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-9 | Statement: [Imperial German Navy, notableShip, U-9]

Target entity: U-9
Context triple: [Imperial German Navy, notableShip, U-9]

• A. U-boats
  U-boats were German military submarines, most famously used in both World Wars for commerce raiding and naval warfare in the Atlantic.
• B. German submarine U-616
  German submarine U-616 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine that operated in the Mediterranean during World War II, engaging Allied naval forces before being sunk in 1944.
• C. U-505 submarine
  The U-505 submarine is a captured German World War II U-boat preserved as a historic naval artifact and war prize.
• D. Admiral Graf Spee
  Admiral Graf Spee was a German "pocket battleship" (heavy cruiser) of the Kriegsmarine famed for its commerce raiding in the South Atlantic and its scuttling after the Battle of the River Plate early in World War II.
• E. Tirpitz
  Tirpitz was a German World War II battleship, sister ship to Bismarck, known for its powerful presence in Norwegian waters and the significant Allied efforts devoted to neutralizing it.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"

Entity: U-9
Triple: [Imperial German Navy, notableShip, U-9]

U-9 was a German World War I U-boat famed for its early and dramatic successes in submarine warfare, including the sinking of three British cruisers in a single engagement in 1914.

Target entity: U-9
Target entity description: U-9 was a German World War I U-boat famed for its early and dramatic successes in submarine warfare, including the sinking of three British cruisers in a single engagement in 1914.

• A. U-boats
  U-boats were German military submarines, most famously used in both World Wars for commerce raiding and naval warfare in the Atlantic.
• B. German submarine U-616
  German submarine U-616 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine that operated in the Mediterranean during World War II, engaging Allied naval forces before being sunk in 1944.
• C. U-505 submarine
  The U-505 submarine is a captured German World War II U-boat preserved as a historic naval artifact and war prize.
• D. Admiral Graf Spee
  Admiral Graf Spee was a German "pocket battleship" (heavy cruiser) of the Kriegsmarine famed for its commerce raiding in the South Atlantic and its scuttling after the Battle of the River Plate early in World War II.
• E. Tirpitz
  Tirpitz was a German World War II battleship, sister ship to Bismarck, known for its powerful presence in Norwegian waters and the significant Allied efforts devoted to neutralizing it.
• F. None of above. chosen