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: RB-47 | Statement: [B-47 Stratojet, variant, RB-47]

Target entity: RB-47
Context triple: [B-47 Stratojet, variant, RB-47]

• A. RB-50
  The RB-50 was a reconnaissance and weather reconnaissance variant of the Boeing B-50 Superfortress used by the United States Air Force during the early Cold War.
• B. RB.168
  RB.168 is the internal designation for the Rolls-Royce Spey, a low-bypass turbofan jet engine widely used in military and commercial aircraft from the 1960s onward.
• C. RJ‑21
  RJ‑21 is the motor vehicle registration code assigned to the Nagaur district in the Indian state of Rajasthan.
• D. Consolidated RY Liberator Express
  The Consolidated RY Liberator Express was a military transport aircraft variant of the B-24 Liberator, adapted for long-range cargo and personnel transport during World War II.
• E. M-346 trainer aircraft
  The M-346 is an advanced jet trainer and light attack aircraft designed for lead-in fighter training and tactical roles, widely used by several air forces worldwide.
• 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: RB-47
Triple: [B-47 Stratojet, variant, RB-47]

The RB-47 was a reconnaissance version of the Boeing B-47 Stratojet, used primarily during the Cold War for strategic photographic and electronic intelligence missions.

Target entity: RB-47
Target entity description: The RB-47 was a reconnaissance version of the Boeing B-47 Stratojet, used primarily during the Cold War for strategic photographic and electronic intelligence missions.

• A. RB-50
  The RB-50 was a reconnaissance and weather reconnaissance variant of the Boeing B-50 Superfortress used by the United States Air Force during the early Cold War.
• B. RB.168
  RB.168 is the internal designation for the Rolls-Royce Spey, a low-bypass turbofan jet engine widely used in military and commercial aircraft from the 1960s onward.
• C. RJ‑21
  RJ‑21 is the motor vehicle registration code assigned to the Nagaur district in the Indian state of Rajasthan.
• D. Consolidated RY Liberator Express
  The Consolidated RY Liberator Express was a military transport aircraft variant of the B-24 Liberator, adapted for long-range cargo and personnel transport during World War II.
• E. M-346 trainer aircraft
  The M-346 is an advanced jet trainer and light attack aircraft designed for lead-in fighter training and tactical roles, widely used by several air forces worldwide.
• F. None of above. chosen