Triple

T14060950
Position Surface form Disambiguated ID Type / Status
Subject MTR Corporation E338342 entity
Predicate operates P24 FINISHED
Object MTR
MTR is Hong Kong’s rapid transit railway system, known for its extensive network, high efficiency, and role as the city’s primary public transportation backbone.
E304050 NE FINISHED

How this triple was built (4 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
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: MTR | Statement: [MTR Corporation, operates, MTR]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: MTR
Context triple: [MTR Corporation, operates, MTR]
  • A. MTR
    MTR is the station code for Matara railway station, a key terminus on Sri Lanka’s coastal railway line.
  • B. MTR urban lines
    MTR urban lines are a network of rapid transit railway services forming the core of Hong Kong’s mass transit system, particularly serving dense urban areas such as Kowloon.
  • C. MTR Nordic
    MTR Nordic is a Swedish public transport company that operates and manages rail and metro services, including the Stockholm metro, as part of the global MTR Corporation group.
  • D. MTR Tuen Ma line
    The MTR Tuen Ma line is a major heavy-rail metro line in Hong Kong that runs across the New Territories and Kowloon, connecting eastern and western districts through key residential and commercial areas.
  • E. MTR Light Rail
    MTR Light Rail is a local light rail transit system in Hong Kong’s northwestern New Territories, providing frequent, short-distance services that connect residential areas with major MTR heavy rail lines.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
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: MTR
Triple: [MTR Corporation, operates, MTR]
Generated description
MTR is Hong Kong’s rapid transit railway system, known for its extensive network, high efficiency, and role as the city’s primary public transportation backbone.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: MTR
Target entity description: MTR is Hong Kong’s rapid transit railway system, known for its extensive network, high efficiency, and role as the city’s primary public transportation backbone.
  • A. MTR
    MTR is the station code for Matara railway station, a key terminus on Sri Lanka’s coastal railway line.
  • B. MTR urban lines chosen
    MTR urban lines are a network of rapid transit railway services forming the core of Hong Kong’s mass transit system, particularly serving dense urban areas such as Kowloon.
  • C. MTR Nordic
    MTR Nordic is a Swedish public transport company that operates and manages rail and metro services, including the Stockholm metro, as part of the global MTR Corporation group.
  • D. MTR Tuen Ma line
    The MTR Tuen Ma line is a major heavy-rail metro line in Hong Kong that runs across the New Territories and Kowloon, connecting eastern and western districts through key residential and commercial areas.
  • E. MTR Light Rail
    MTR Light Rail is a local light rail transit system in Hong Kong’s northwestern New Territories, providing frequent, short-distance services that connect residential areas with major MTR heavy rail lines.
  • F. None of above.

Provenance (5 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69d81c67ba6c819091935650dfb3b895 completed April 9, 2026, 9:38 p.m.
NER Named-entity recognition batch_69de5686f51c81908c33143ecbaae83d completed April 14, 2026, 3 p.m.
NED1 Entity disambiguation (via context triple) batch_69fcd09db51c8190ab275e68b1aec120 completed May 7, 2026, 5:49 p.m.
NEDg Description generation batch_69fcd340e25881908c2ff61a40da2e7a completed May 7, 2026, 6 p.m.
NED2 Entity disambiguation (via description) batch_69fcd3fe5f5081909291e8b9af77ee33 completed May 7, 2026, 6:03 p.m.
Created at: April 9, 2026, 10:21 p.m.