Triple

T19972412
Position Surface form Disambiguated ID Type / Status
Subject Mexican railroads E480110 entity
Predicate historicalOperator P2834 FINISHED
Object Ferrocarriles Nacionales de México — NE NERFINISHED

How this triple was built (3 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.
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 (2 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.
Created at: April 10, 2026, 1:54 p.m.