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: PL-21 air-to-air missile | Statement: [Chengdu J-20, armament, PL-21 air-to-air missile]

Target entity: PL-21 air-to-air missile
Context triple: [Chengdu J-20, armament, PL-21 air-to-air missile]

• A. PL-10 air-to-air missile
  The PL-10 is a Chinese short-range, high-agility infrared-guided air-to-air missile designed for modern fighter aircraft and close-in dogfight engagements.
• B. PL-15 air-to-air missile
  The PL-15 is a modern Chinese long-range, active radar-guided air-to-air missile designed to equip advanced fighters and counter high-value airborne targets.
• C. R-40 air-to-air missile
  The R-40 is a long-range Soviet/Russian air-to-air missile originally developed for high-speed interceptor aircraft to engage strategic bombers and other large targets at extended distances.
• D. R-73 air-to-air missile
  The R-73 is a short-range, infrared-guided Russian air-to-air missile known for its high off-boresight capability and agility in close combat.
• E. AAM-3 air-to-air missiles
  The AAM-3 is a Japanese short-range infrared-guided air-to-air missile used by the Japan Air Self-Defense Force as a modern successor to the AIM-9 Sidewinder.
• 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: PL-21 air-to-air missile
Triple: [Chengdu J-20, armament, PL-21 air-to-air missile]

The PL-21 is a Chinese long-range, beyond-visual-range air-to-air missile reportedly featuring advanced active radar guidance and designed to engage high-value aerial targets at extended distances.

Target entity: PL-21 air-to-air missile
Target entity description: The PL-21 is a Chinese long-range, beyond-visual-range air-to-air missile reportedly featuring advanced active radar guidance and designed to engage high-value aerial targets at extended distances.

• A. PL-10 air-to-air missile
  The PL-10 is a Chinese short-range, high-agility infrared-guided air-to-air missile designed for modern fighter aircraft and close-in dogfight engagements.
• B. PL-15 air-to-air missile chosen
  The PL-15 is a modern Chinese long-range, active radar-guided air-to-air missile designed to equip advanced fighters and counter high-value airborne targets.
• C. R-40 air-to-air missile
  The R-40 is a long-range Soviet/Russian air-to-air missile originally developed for high-speed interceptor aircraft to engage strategic bombers and other large targets at extended distances.
• D. R-73 air-to-air missile
  The R-73 is a short-range, infrared-guided Russian air-to-air missile known for its high off-boresight capability and agility in close combat.
• E. AAM-3 air-to-air missiles
  The AAM-3 is a Japanese short-range infrared-guided air-to-air missile used by the Japan Air Self-Defense Force as a modern successor to the AIM-9 Sidewinder.
• F. None of above.