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: Seoul Metropolitan Subway network | Statement: [Line 2 (Seoul Metropolitan Subway), isKeyInterchangeBackboneOf, Seoul Metropolitan Subway network]

Target entity: Seoul Metropolitan Subway network
Context triple: [Line 2 (Seoul Metropolitan Subway), isKeyInterchangeBackboneOf, Seoul Metropolitan Subway network]

• A. Seoul Metropolitan Subway chosen
  The Seoul Metropolitan Subway is an extensive rapid transit network serving Seoul and its surrounding metropolitan area, known for its high efficiency, cleanliness, and technological sophistication.
• B. Seoul Metro
  Seoul Metro is the public corporation responsible for operating a major portion of the Seoul Metropolitan Subway system in South Korea.
• C. Seoul Subway Line 1
  Seoul Subway Line 1 is a major north–south subway line in the Seoul Metropolitan Subway system, connecting central Seoul with numerous suburban cities and serving as one of the network’s oldest and busiest routes.
• D. Incheon Subway
  Incheon Subway is the urban rapid transit system serving the city of Incheon, South Korea, connecting major districts and linking with the Seoul Metropolitan Subway network.
• E. Daegu Metro
  Daegu Metro is the urban rapid transit system serving the city of Daegu in South Korea, providing high-capacity rail transportation across the metropolitan area.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target predicate: isKeyInterchangeBackboneOf
Context triple: [Line 2 (Seoul Metropolitan Subway), isKeyInterchangeBackboneOf, Seoul Metropolitan Subway network]

• A. isKeyInterchangeFor chosen
  Indicates that one location or facility serves as a primary transfer point connecting major routes, lines, or modes of transport for another.
• B. isKeyEndpointOf
  Indicates that one endpoint in a connection, link, or structure serves as the primary or designated key endpoint of the other.
• C. isBackboneOf
  Indicates that one entity forms the main supporting structure or central framework upon which another entity fundamentally depends.
• D. keyAssociation
  Indicates an associative relationship where one entity serves as a key used to identify, access, or link to another entity or set of entities.
• E. areKeyTo
  Indicates that something is essential or critically important for enabling, achieving, or understanding something else.
• F. None of above.