Triple

T19972412
Position Surface form Disambiguated ID Type / Status
Subject Mexican railroads E480110 entity
Predicate historicalOperator P2834 FINISHED
Object Ferrocarriles Nacionales de México
Ferrocarriles Nacionales de México was the former state-owned national railway company of Mexico that operated most of the country’s rail network during the 20th century.
E1405227 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: Ferrocarriles Nacionales de México | Statement: [Mexican railroads, historicalOperator, Ferrocarriles Nacionales de México]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Ferrocarriles Nacionales de México
Context triple: [Mexican railroads, historicalOperator, Ferrocarriles Nacionales de México]
  • A. Ferrocarril Mexicano
    Ferrocarril Mexicano is a major Mexican railway company that operates extensive freight and passenger rail services across key industrial and commercial regions of the country.
  • B. Ferrocarriles Suburbanos S.A. de C.V.
    Ferrocarriles Suburbanos S.A. de C.V. is a Mexican company responsible for operating suburban passenger rail services in the Mexico City metropolitan area.
  • C. Ferrocarril Chihuahua al Pacífico
    Ferrocarril Chihuahua al Pacífico is a scenic Mexican railway line, commonly known as "El Chepe," that traverses the Sierra Madre Occidental and the Copper Canyon region.
  • D. Empresa de los Ferrocarriles del Estado
    Empresa de los Ferrocarriles del Estado is Chile’s state-owned railway company responsible for operating and managing much of the country’s passenger and freight rail services.
  • E. Kansas City Southern de México
    Kansas City Southern de México is a major Mexican railway company that operates freight rail services connecting key industrial regions in Mexico with the United States.
  • 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: Ferrocarriles Nacionales de México
Triple: [Mexican railroads, historicalOperator, Ferrocarriles Nacionales de México]
Generated description
Ferrocarriles Nacionales de México was the former state-owned national railway company of Mexico that operated most of the country’s rail network during the 20th century.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Ferrocarriles Nacionales de México
Target entity description: Ferrocarriles Nacionales de México was the former state-owned national railway company of Mexico that operated most of the country’s rail network during the 20th century.
  • A. Ferrocarril Mexicano
    Ferrocarril Mexicano is a major Mexican railway company that operates extensive freight and passenger rail services across key industrial and commercial regions of the country.
  • B. Ferrocarriles Suburbanos S.A. de C.V.
    Ferrocarriles Suburbanos S.A. de C.V. is a Mexican company responsible for operating suburban passenger rail services in the Mexico City metropolitan area.
  • C. Ferrocarril Chihuahua al Pacífico
    Ferrocarril Chihuahua al Pacífico is a scenic Mexican railway line, commonly known as "El Chepe," that traverses the Sierra Madre Occidental and the Copper Canyon region.
  • D. Empresa de los Ferrocarriles del Estado
    Empresa de los Ferrocarriles del Estado is Chile’s state-owned railway company responsible for operating and managing much of the country’s passenger and freight rail services.
  • E. Kansas City Southern de México
    Kansas City Southern de México is a major Mexican railway company that operates freight rail services connecting key industrial regions in Mexico with the United States.
  • 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_69d8e523c19881909f9197037200dde6 completed April 10, 2026, 11:55 a.m.
NER Named-entity recognition batch_69e65bca94c0819095c902a411c4c4b8 completed April 20, 2026, 5 p.m.
NED1 Entity disambiguation (via context triple) batch_6a0804f72b288190ae03a856d3581508 completed May 16, 2026, 5:47 a.m.
NEDg Description generation batch_6a0805ff590c8190afe9f275675cbb27 completed May 16, 2026, 5:51 a.m.
NED2 Entity disambiguation (via description) batch_6a0806ab6cdc8190bd11822e0f5426cc completed May 16, 2026, 5:54 a.m.
Created at: April 10, 2026, 1:54 p.m.