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: SSBN S30 | Statement: [HMS Vigilant, natoReportingName, SSBN S30]

Target entity: SSBN S30
Context triple: [HMS Vigilant, natoReportingName, SSBN S30]

• A. SSBN-826
  SSBN-826 is the lead boat of the U.S. Navy’s Columbia-class ballistic missile submarines, designed to replace the Ohio-class as a key component of the United States’ sea-based nuclear deterrent.
• B. SSBN
  SSBN is a naval hull classification symbol denoting nuclear-powered ballistic missile submarines designed primarily for strategic nuclear deterrence.
• C. SS-5 Skean MRBM
  The SS-5 Skean MRBM was a Soviet medium-range ballistic missile deployed during the Cold War for nuclear delivery against intermediate-distance targets.
• D. SSBN(X) program
  The SSBN(X) program is the U.S. Navy’s initiative to develop and field the Columbia-class ballistic missile submarines that will replace the aging Ohio-class as the backbone of America’s sea-based nuclear deterrent.
• E. SS-N-21 Sampson
  The SS-N-21 Sampson is a Russian submarine-launched land-attack cruise missile designed for long-range, precision strikes, particularly from nuclear-powered attack submarines.
• 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: SSBN S30
Triple: [HMS Vigilant, natoReportingName, SSBN S30]

SSBN S30 is the NATO reporting name for HMS Vigilant, a British Vanguard-class nuclear-powered ballistic missile submarine in the Royal Navy's strategic deterrent fleet.

Target entity: SSBN S30
Target entity description: SSBN S30 is the NATO reporting name for HMS Vigilant, a British Vanguard-class nuclear-powered ballistic missile submarine in the Royal Navy's strategic deterrent fleet.

• A. SSBN-826
  SSBN-826 is the lead boat of the U.S. Navy’s Columbia-class ballistic missile submarines, designed to replace the Ohio-class as a key component of the United States’ sea-based nuclear deterrent.
• B. SSBN
  SSBN is a naval hull classification symbol denoting nuclear-powered ballistic missile submarines designed primarily for strategic nuclear deterrence.
• C. SS-5 Skean MRBM
  The SS-5 Skean MRBM was a Soviet medium-range ballistic missile deployed during the Cold War for nuclear delivery against intermediate-distance targets.
• D. SSBN(X) program
  The SSBN(X) program is the U.S. Navy’s initiative to develop and field the Columbia-class ballistic missile submarines that will replace the aging Ohio-class as the backbone of America’s sea-based nuclear deterrent.
• E. SS-N-21 Sampson
  The SS-N-21 Sampson is a Russian submarine-launched land-attack cruise missile designed for long-range, precision strikes, particularly from nuclear-powered attack submarines.
• F. None of above. chosen