Triple

T8949115
Position Surface form Disambiguated ID Type / Status
Subject Chongqing Metro E213296 entity
Predicate heavyRailLines P848 FINISHED
Object Line 1
Line 1 is a major rapid transit line of the Chongqing Metro system in Chongqing, China, providing east–west urban rail service across the city.
 E768290 NE FINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

Instruction
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).
Input
Phrase: Line 1 | Statement: [Chongqing Metro, heavyRailLines, Line 1]

Disambiguation candidates (3 decisions)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Line 1
Context triple: [Chongqing Metro, heavyRailLines, Line 1]
  • A. Line 1
    Line 1 is the oldest and one of the busiest lines of the Santiago Metro, running primarily east–west across central Santiago, Chile.
  • B. Line 1
    Line 1 is the oldest and one of the busiest lines of the Paris Métro, running primarily east–west through central Paris and serving many major landmarks.
  • C. Line 1
    Line 1 is the first and main rapid transit line of the Seville Metro system in Seville, Spain, connecting key districts across the metropolitan area.
  • D. Line 1
    Line 1 is the designation for the Red Line, one of the main rapid transit corridors of the Delhi Metro network in India.
  • E. Line 1
    Line 1 is a major Milan Metro line that serves key areas of the city, including Milano Cadorna station.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Line 1
Target entity description: Line 1 is a major rapid transit line of the Chongqing Metro system in Chongqing, China, providing east–west urban rail service across the city.
  • A. Line 1 chosen
    Line 1 is a major rapid transit line of the Chongqing Metro system in Chongqing, China, providing east–west urban rail service across the city.
  • B. Line 1
    Line 1 is a major rapid transit line of the Guangzhou Metro system in Guangzhou, China, serving as one of the city's primary east–west corridors.
  • C. Line 1
    Line 1 is a major north–south rapid transit line of the Shanghai Metro and one of the system’s oldest and busiest routes.
  • D. Line 1
    Line 1 is a major rapid transit line of the Shenzhen Metro system, serving as one of the city's primary east–west subway corridors.
  • E. Line 1
    Line 1 is one of the main east–west rapid transit lines of the Beijing Subway, serving as a core corridor through central Beijing.
  • F. None of above.
PD Predicate disambiguation gpt-5-mini-2025-08-07 
Target predicate: heavyRailLines
Context triple: [Chongqing Metro, heavyRailLines, Line 1]
  • A. subwayLine
    Indicates that there is a subway line connection or service relationship between the referenced entities.
  • B. numberOfRailLines
    Indicates the total count of rail lines associated with or serving a given entity.
  • C. rapidTransitSystem
    Indicates a transportation relationship where people or goods are moved via a high-capacity, high-frequency public transit system designed for rapid travel over urban or regional routes.
  • D. railwayLine chosen
    Indicates that there is a railway line connection or route associated with or passing through the referenced entity.
  • E. hasHighSpeedLine
    Indicates that there exists a high-speed rail line connection between the related entities.
  • F. None of above.

How the object was described

The object's one-sentence description was generated by prompting gpt-5.1 with the object name and this triple as context.

Instruction
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]"
Input
Entity: Line 1
Triple: [Chongqing Metro, heavyRailLines, Line 1]
Generated description
Line 1 is a major rapid transit line of the Chongqing Metro system in Chongqing, China, providing east–west urban rail service across the city.

Provenance (6 batches)

Stage Batch ID Job type Status
creating batch_69ca839843408190a39069a029a89f15 elicitation completed
NER batch_69cc6709c7a48190ab503083a1d6a29f ner completed
NED1 batch_69cfc93c678c81909d2ab68308d7c2f0 ned_source_triple completed
NED2 batch_69cfcda4cf188190b88a6379b5456754 ned_description completed
NEDg batch_69cfccf492048190acc6670a0f32607c nedg completed
PD batch_69cc5ed5267c8190a43feb2a2f3df1ec pd completed
Created at: March 30, 2026, 6:59 p.m.