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: SS-5 Skean MRBM | Statement: [Soviet Strategic Rocket Forces, usedWeaponSystem, SS-5 Skean MRBM]

Target entity: SS-5 Skean MRBM
Context triple: [Soviet Strategic Rocket Forces, usedWeaponSystem, SS-5 Skean MRBM]

• A. Vanguard-class ballistic missile submarines
  Vanguard-class ballistic missile submarines are the United Kingdom’s nuclear-powered, nuclear-armed submarines that form the seaborne leg of its strategic deterrent force.
• B. Trident II D5 missile
  The Trident II D5 missile is a submarine-launched, nuclear-capable ballistic missile used by the U.S. and U.K. navies as a key component of their strategic deterrent forces.
• C. SM-65 Atlas
  The SM-65 Atlas was the United States’ first operational intercontinental ballistic missile, later adapted as a pioneering space launch vehicle in the early space program.
• D. Columbia-class submarine
  The Columbia-class submarine is the U.S. Navy’s next-generation nuclear-powered ballistic missile submarine designed to replace the aging Ohio-class as the backbone of America’s sea-based nuclear deterrent.
• E. Astute-class submarine
  The Astute-class submarine is a fleet of advanced nuclear-powered attack submarines built for the Royal Navy, known for their stealth, endurance, and sophisticated weapons and sensor systems.
• 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: SS-5 Skean MRBM
Triple: [Soviet Strategic Rocket Forces, usedWeaponSystem, 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.

Target entity: SS-5 Skean MRBM
Target entity description: The SS-5 Skean MRBM was a Soviet medium-range ballistic missile deployed during the Cold War for nuclear delivery against intermediate-distance targets.

• A. Vanguard-class ballistic missile submarines
  Vanguard-class ballistic missile submarines are the United Kingdom’s nuclear-powered, nuclear-armed submarines that form the seaborne leg of its strategic deterrent force.
• B. Trident II D5 missile
  The Trident II D5 missile is a submarine-launched, nuclear-capable ballistic missile used by the U.S. and U.K. navies as a key component of their strategic deterrent forces.
• C. SM-65 Atlas
  The SM-65 Atlas was the United States’ first operational intercontinental ballistic missile, later adapted as a pioneering space launch vehicle in the early space program.
• D. Columbia-class submarine
  The Columbia-class submarine is the U.S. Navy’s next-generation nuclear-powered ballistic missile submarine designed to replace the aging Ohio-class as the backbone of America’s sea-based nuclear deterrent.
• E. Astute-class submarine
  The Astute-class submarine is a fleet of advanced nuclear-powered attack submarines built for the Royal Navy, known for their stealth, endurance, and sophisticated weapons and sensor systems.
• F. None of above. chosen