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: Su-20 | Statement: [GSh-30-2, usedOnAircraft, Su-20]

Target entity: Su-20
Context triple: [GSh-30-2, usedOnAircraft, Su-20]

• A. Su-9
  The Su-9 was a Soviet supersonic jet interceptor aircraft developed in the 1950s for high-speed, high-altitude air defense missions.
• B. Su-17
  The Su-17 is a Soviet variable-sweep wing fighter-bomber developed from the Su-7 and widely used for ground-attack and strike missions during the Cold War.
• C. Sukhoi Su-2
  The Sukhoi Su-2 was a Soviet single-engine light bomber and reconnaissance aircraft used primarily in the early years of World War II on the Eastern Front.
• D. Sukhoi Su-7
  The Sukhoi Su-7 is a Soviet-era swept-wing fighter-bomber aircraft widely used during the Cold War for ground-attack missions.
• E. Su-15
  The Su-15 was a Soviet supersonic interceptor aircraft developed in the 1960s, best known for its role in Cold War air defense and its involvement in several high-profile shootdown incidents.
• 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: Su-20
Triple: [GSh-30-2, usedOnAircraft, Su-20]

The Su-20 is an export variant of the Soviet Su-17 variable-sweep wing fighter-bomber designed for ground-attack and strike missions.

Target entity: Su-20
Target entity description: The Su-20 is an export variant of the Soviet Su-17 variable-sweep wing fighter-bomber designed for ground-attack and strike missions.

• A. Su-9
  The Su-9 was a Soviet supersonic jet interceptor aircraft developed in the 1950s for high-speed, high-altitude air defense missions.
• B. Su-17 chosen
  The Su-17 is a Soviet variable-sweep wing fighter-bomber developed from the Su-7 and widely used for ground-attack and strike missions during the Cold War.
• C. Sukhoi Su-2
  The Sukhoi Su-2 was a Soviet single-engine light bomber and reconnaissance aircraft used primarily in the early years of World War II on the Eastern Front.
• D. Sukhoi Su-7
  The Sukhoi Su-7 is a Soviet-era swept-wing fighter-bomber aircraft widely used during the Cold War for ground-attack missions.
• E. Su-15
  The Su-15 was a Soviet supersonic interceptor aircraft developed in the 1960s, best known for its role in Cold War air defense and its involvement in several high-profile shootdown incidents.
• F. None of above.