Triple

T3824757
Position Surface form Disambiguated ID Type / Status
Subject Desamparados railway station E88658 entity
Predicate operator P179 FINISHED
Object Peruvian state railways
Peruvian state railways is the national government-owned railway system of Peru responsible for operating and managing key passenger and freight rail services across the country.
E394257 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: Peruvian state railways | Statement: [Desamparados railway station, operator, Peruvian state railways]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Peruvian state railways
Context triple: [Desamparados railway station, operator, Peruvian state railways]
  • A. 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.
  • B. Huancavelica–Huancayo railway
    The Huancavelica–Huancayo railway is a Peruvian Andean rail line known for connecting remote highland communities through challenging mountainous terrain.
  • 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. 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.
  • 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: Peruvian state railways
Triple: [Desamparados railway station, operator, Peruvian state railways]
Generated description
Peruvian state railways is the national government-owned railway system of Peru responsible for operating and managing key passenger and freight rail services across the country.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Peruvian state railways
Target entity description: Peruvian state railways is the national government-owned railway system of Peru responsible for operating and managing key passenger and freight rail services across the country.
  • A. 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.
  • B. Huancavelica–Huancayo railway
    The Huancavelica–Huancayo railway is a Peruvian Andean rail line known for connecting remote highland communities through challenging mountainous terrain.
  • 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. 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.
  • 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_69aed9538cf881909d9ce8ca4ac7c18c completed March 9, 2026, 2:29 p.m.
NER Named-entity recognition batch_69aeeb6223808190aee0c15259eeeecd completed March 9, 2026, 3:46 p.m.
NED1 Entity disambiguation (via context triple) batch_69b51222e5b08190aa4ac79722219798 completed March 14, 2026, 7:45 a.m.
NEDg Description generation batch_69b512c6655c819097f2fcac6b6f26b9 completed March 14, 2026, 7:48 a.m.
NED2 Entity disambiguation (via description) batch_69b513289494819090a2d527780c2cc6 completed March 14, 2026, 7:50 a.m.
Created at: March 9, 2026, 3:17 p.m.