Triple

T14060954
Position Surface form Disambiguated ID Type / Status
Subject MTR Corporation E338342 entity
Predicate predecessor P97 FINISHED
Object Mass Transit Railway Corporation
Mass Transit Railway Corporation was the original government-owned operator of Hong Kong’s urban rail network before its reorganization into the MTR Corporation.
E1077955 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: Mass Transit Railway Corporation | Statement: [MTR Corporation, predecessor, Mass Transit Railway Corporation]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Mass Transit Railway Corporation
Context triple: [MTR Corporation, predecessor, Mass Transit Railway Corporation]
  • A. Metropolitan Intercity Railway Company
    Metropolitan Intercity Railway Company is a Japanese railway operator best known for running the Tsukuba Express line connecting central Tokyo with the Tsukuba area.
  • B. BC Rapid Transit Company
    BC Rapid Transit Company is the public agency responsible for operating and managing metro and light rail transit services in the Metro Vancouver region of British Columbia, Canada.
  • C. Toronto Railway Company
    The Toronto Railway Company was a private streetcar operator that ran Toronto’s electric tram system in the late 19th and early 20th centuries before public transit was municipalized.
  • D. United Railways and Electric Company
    United Railways and Electric Company was a major early 20th-century streetcar and electric transit operator in Baltimore, Maryland, that formed the backbone of the city’s public transportation system before its successor companies.
  • E. Metropolitan Transit Corporation
    The Metropolitan Transit Corporation was the former public transit agency that operated bus services in King County, Washington, before being succeeded by King County Metro.
  • 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: Mass Transit Railway Corporation
Triple: [MTR Corporation, predecessor, Mass Transit Railway Corporation]
Generated description
Mass Transit Railway Corporation was the original government-owned operator of Hong Kong’s urban rail network before its reorganization into the MTR Corporation.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Mass Transit Railway Corporation
Target entity description: Mass Transit Railway Corporation was the original government-owned operator of Hong Kong’s urban rail network before its reorganization into the MTR Corporation.
  • A. Metropolitan Intercity Railway Company
    Metropolitan Intercity Railway Company is a Japanese railway operator best known for running the Tsukuba Express line connecting central Tokyo with the Tsukuba area.
  • B. BC Rapid Transit Company
    BC Rapid Transit Company is the public agency responsible for operating and managing metro and light rail transit services in the Metro Vancouver region of British Columbia, Canada.
  • C. Toronto Railway Company
    The Toronto Railway Company was a private streetcar operator that ran Toronto’s electric tram system in the late 19th and early 20th centuries before public transit was municipalized.
  • D. United Railways and Electric Company
    United Railways and Electric Company was a major early 20th-century streetcar and electric transit operator in Baltimore, Maryland, that formed the backbone of the city’s public transportation system before its successor companies.
  • E. Metropolitan Transit Corporation
    The Metropolitan Transit Corporation was the former public transit agency that operated bus services in King County, Washington, before being succeeded by King County Metro.
  • F. None of above. chosen

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_69fcb6654850819083262f3fb981eb1a completed May 7, 2026, 3:57 p.m.
NEDg Description generation batch_69fcc4fa09448190b662af829712e657 completed May 7, 2026, 4:59 p.m.
NED2 Entity disambiguation (via description) batch_69fcc5d162c081908750fed589ed2d69 completed May 7, 2026, 5:03 p.m.
Created at: April 9, 2026, 10:21 p.m.