Triple

T13415987
Position Surface form Disambiguated ID Type / Status
Subject Antofagasta–Bolivia Railway E313215 entity
Predicate owner P347 FINISHED
Object Ferrocarril de Antofagasta a Bolivia S.A.
Ferrocarril de Antofagasta a Bolivia S.A. is a Chilean railway company that operates freight and transport services along the historic rail corridor linking the port city of Antofagasta with Bolivia.
E313215 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: Ferrocarril de Antofagasta a Bolivia S.A. | Statement: [Antofagasta–Bolivia Railway, owner, Ferrocarril de Antofagasta a Bolivia S.A.]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Ferrocarril de Antofagasta a Bolivia S.A.
Context triple: [Antofagasta–Bolivia Railway, owner, Ferrocarril de Antofagasta a Bolivia S.A.]
  • A. Bolivian railway network
    The Bolivian railway network is the national system of rail lines in Bolivia that connects key cities, mining regions, and border crossings, historically crucial for transporting minerals and linking the country to neighboring nations.
  • B. 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.
  • C. 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.
  • D. former Valparaíso–Santiago railway
    The former Valparaíso–Santiago railway was a historic Chilean rail line that once connected the coastal city of Valparaíso with the capital Santiago, serving as a key transportation corridor across central Chile.
  • E. Ferrocarril Central Andino
    Ferrocarril Central Andino is a major Peruvian railway line that crosses the Andes, historically known for being one of the highest standard-gauge railways in the world and a key link between Lima and the country’s central highlands.
  • 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: Ferrocarril de Antofagasta a Bolivia S.A.
Triple: [Antofagasta–Bolivia Railway, owner, Ferrocarril de Antofagasta a Bolivia S.A.]
Generated description
Ferrocarril de Antofagasta a Bolivia S.A. is a Chilean railway company that operates freight and transport services along the historic rail corridor linking the port city of Antofagasta with Bolivia.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Ferrocarril de Antofagasta a Bolivia S.A.
Target entity description: Ferrocarril de Antofagasta a Bolivia S.A. is a Chilean railway company that operates freight and transport services along the historic rail corridor linking the port city of Antofagasta with Bolivia.
  • A. Bolivian railway network
    The Bolivian railway network is the national system of rail lines in Bolivia that connects key cities, mining regions, and border crossings, historically crucial for transporting minerals and linking the country to neighboring nations.
  • B. Antofagasta–Bolivia Railway chosen
    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.
  • C. 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.
  • D. former Valparaíso–Santiago railway
    The former Valparaíso–Santiago railway was a historic Chilean rail line that once connected the coastal city of Valparaíso with the capital Santiago, serving as a key transportation corridor across central Chile.
  • E. Ferrocarril Central Andino
    Ferrocarril Central Andino is a major Peruvian railway line that crosses the Andes, historically known for being one of the highest standard-gauge railways in the world and a key link between Lima and the country’s central highlands.
  • F. None of above.

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_69d806ad0c44819088833ae1ec9e9690 completed April 9, 2026, 8:06 p.m.
NER Named-entity recognition batch_69dbaeb6e904819098cc9153fd2feaf5 completed April 12, 2026, 2:39 p.m.
NED1 Entity disambiguation (via context triple) batch_69f7308095548190afb659b84f2775f2 completed May 3, 2026, 11:24 a.m.
NEDg Description generation batch_69f73242a368819080ceda37583c0d7c completed May 3, 2026, 11:32 a.m.
NED2 Entity disambiguation (via description) batch_69f732b3ba748190b2a430300e798ed8 completed May 3, 2026, 11:34 a.m.
Created at: April 9, 2026, 9:39 p.m.