Triple

T13143899
Position Surface form Disambiguated ID Type / Status
Subject EFE Trenes de Chile E312285 entity
Predicate hasSubsidiary P254 FINISHED
Object Tren Limache–Puerto
Tren Limache–Puerto is a commuter rail service in Chile that connects coastal cities in the Valparaíso Region, providing frequent urban and suburban passenger transport.
E1025052 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: Tren Limache–Puerto | Statement: [EFE Trenes de Chile, hasSubsidiary, Tren Limache–Puerto]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Tren Limache–Puerto
Context triple: [EFE Trenes de Chile, hasSubsidiary, Tren Limache–Puerto]
  • A. Tacna–Arica railway
    The Tacna–Arica railway is a historic international rail line connecting the Peruvian city of Tacna with the Chilean port of Arica across the Atacama Desert.
  • B. Arica–La Paz Railway
    The Arica–La Paz Railway is a historic trans-Andean rail line connecting the Chilean port city of Arica with Bolivia’s capital, La Paz, primarily built to facilitate Bolivian access to the Pacific Ocean.
  • C. Chepe railway
    The Chepe railway is a scenic passenger train route in northern Mexico that traverses the dramatic landscapes and deep gorges of the Copper Canyon.
  • 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. Antofagasta–Bolivia Railway
    The Antofagasta–Bolivia Railway is a historic trans-Andean rail line linking Chile’s Pacific coast with Bolivia’s interior, primarily built to transport minerals from the Andean region to port.
  • 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: Tren Limache–Puerto
Triple: [EFE Trenes de Chile, hasSubsidiary, Tren Limache–Puerto]
Generated description
Tren Limache–Puerto is a commuter rail service in Chile that connects coastal cities in the Valparaíso Region, providing frequent urban and suburban passenger transport.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Tren Limache–Puerto
Target entity description: Tren Limache–Puerto is a commuter rail service in Chile that connects coastal cities in the Valparaíso Region, providing frequent urban and suburban passenger transport.
  • A. Tacna–Arica railway
    The Tacna–Arica railway is a historic international rail line connecting the Peruvian city of Tacna with the Chilean port of Arica across the Atacama Desert.
  • B. Arica–La Paz Railway
    The Arica–La Paz Railway is a historic trans-Andean rail line connecting the Chilean port city of Arica with Bolivia’s capital, La Paz, primarily built to facilitate Bolivian access to the Pacific Ocean.
  • C. Chepe railway
    The Chepe railway is a scenic passenger train route in northern Mexico that traverses the dramatic landscapes and deep gorges of the Copper Canyon.
  • 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. Antofagasta–Bolivia Railway
    The Antofagasta–Bolivia Railway is a historic trans-Andean rail line linking Chile’s Pacific coast with Bolivia’s interior, primarily built to transport minerals from the Andean region to port.
  • 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_69d806aabde48190899e13e41659cae5 completed April 9, 2026, 8:06 p.m.
NER Named-entity recognition batch_69d98bce3678819082a7aa1d83f20592 completed April 10, 2026, 11:46 p.m.
NED1 Entity disambiguation (via context triple) batch_69f6eae4a87881908be57e15f001c904 completed May 3, 2026, 6:27 a.m.
NEDg Description generation batch_69f6f05a3dd48190a8b2c52f64a2edd0 completed May 3, 2026, 6:51 a.m.
NED2 Entity disambiguation (via description) batch_69f6f1a7c8108190a9668d2f0bb634b1 completed May 3, 2026, 6:56 a.m.
Created at: April 9, 2026, 9:10 p.m.