Triple

T19972408

Position	Surface form	Disambiguated ID	Type / Status
Subject	Mexican railroads	`E480110`	entity
Predicate	majorOperator	`P5623`	FINISHED
Object	Ferrosur	`—`	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: Ferrosur | Statement: [Mexican railroads, majorOperator, Ferrosur]

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Ferrosur
Context triple: [Mexican railroads, majorOperator, Ferrosur]

A. Ferrocarriles Argentinos
Ferrocarriles Argentinos was Argentina’s former state-owned national railway company that operated most of the country’s passenger and freight rail services during much of the 20th century.
B. Ferrocarriles del Sur S.A.
Ferrocarriles del Sur S.A. is a Chilean railway company that operates regional passenger train services in the Biobío Region.
C. Trenes Argentinos
Trenes Argentinos is Argentina’s state-owned railway company responsible for operating and managing much of the country’s passenger rail network.
D. Sarmiento Line
The Sarmiento Line is a major commuter rail service in the Buenos Aires metropolitan area that links the city center with western suburbs.
E. Argentine railway system
The Argentine railway system is the national network of passenger and freight rail lines that connects major cities and regions across Argentina and has historically played a central role in the country’s economic and territorial development.
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: Ferrosur
Target entity description: Ferrosur is a major Mexican freight railway company that operates key rail lines in the southern and central regions of Mexico.

A. Ferrocarriles Argentinos
Ferrocarriles Argentinos was Argentina’s former state-owned national railway company that operated most of the country’s passenger and freight rail services during much of the 20th century.
B. Ferrocarriles del Sur S.A.
Ferrocarriles del Sur S.A. is a Chilean railway company that operates regional passenger train services in the Biobío Region.
C. Trenes Argentinos
Trenes Argentinos is Argentina’s state-owned railway company responsible for operating and managing much of the country’s passenger rail network.
D. Sarmiento Line
The Sarmiento Line is a major commuter rail service in the Buenos Aires metropolitan area that links the city center with western suburbs.
E. Argentine railway system
The Argentine railway system is the national network of passenger and freight rail lines that connects major cities and regions across Argentina and has historically played a central role in the country’s economic and territorial development.
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.