Triple

T2287721
Position Surface form Disambiguated ID Type / Status
Subject Tren Urbano E51431 entity
Predicate terminus P388 FINISHED
Object Sagrado Corazón station
Sagrado Corazón station is a major rapid transit station in San Juan, Puerto Rico, serving as the northern endpoint of the city's Tren Urbano metro system.
 E256054 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: Sagrado Corazón station | Statement: [Tren Urbano, terminus, Sagrado Corazón station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Sagrado Corazón station
Context triple: [Tren Urbano, terminus, Sagrado Corazón station]
  • A. Retiro station
    Retiro station is a major Buenos Aires Underground terminus and transport hub located in the Retiro district of Argentina’s capital.
  • B. San Carlos station
    San Carlos station is a commuter rail station in San Carlos, California, serving Caltrain passengers on the San Francisco Peninsula.
  • C. Escudero Station
    Escudero Station is a Chilean Antarctic research base located on King George Island that supports scientific studies and logistical operations in the region.
  • D. Castro Muni Metro Station
    Castro Muni Metro Station is an underground light-rail station on San Francisco’s Muni Metro system that serves as a key transit hub for the historic and LGBTQ+ landmark Castro District.
  • E. Federico Lacroze station
    Federico Lacroze station is a major Buenos Aires Underground stop in the Chacarita neighborhood, serving as an important transport hub that connects subway services with suburban rail lines.
  • 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: Sagrado Corazón station
Triple: [Tren Urbano, terminus, Sagrado Corazón station]
Generated description
Sagrado Corazón station is a major rapid transit station in San Juan, Puerto Rico, serving as the northern endpoint of the city's Tren Urbano metro system.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Sagrado Corazón station
Target entity description: Sagrado Corazón station is a major rapid transit station in San Juan, Puerto Rico, serving as the northern endpoint of the city's Tren Urbano metro system.
  • A. Retiro station
    Retiro station is a major Buenos Aires Underground terminus and transport hub located in the Retiro district of Argentina’s capital.
  • B. San Carlos station
    San Carlos station is a commuter rail station in San Carlos, California, serving Caltrain passengers on the San Francisco Peninsula.
  • C. Escudero Station
    Escudero Station is a Chilean Antarctic research base located on King George Island that supports scientific studies and logistical operations in the region.
  • D. Castro Muni Metro Station
    Castro Muni Metro Station is an underground light-rail station on San Francisco’s Muni Metro system that serves as a key transit hub for the historic and LGBTQ+ landmark Castro District.
  • E. Federico Lacroze station
    Federico Lacroze station is a major Buenos Aires Underground stop in the Chacarita neighborhood, serving as an important transport hub that connects subway services with suburban rail lines.
  • 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_69a88b09c644819090b503456d96bf70 completed March 4, 2026, 7:42 p.m.
NER Named-entity recognition batch_69abc24868048190940512fd6449d99e completed March 7, 2026, 6:14 a.m.
NED1 Entity disambiguation (via context triple) batch_69ae894f9ff881909d1b3a7956d82576 completed March 9, 2026, 8:48 a.m.
NEDg Description generation batch_69ae8d2dcc8081908d4274b2287ff2b8 completed March 9, 2026, 9:04 a.m.
NED2 Entity disambiguation (via description) batch_69ae8d786a648190acf0a14e0d4a120c completed March 9, 2026, 9:06 a.m.
Created at: March 4, 2026, 7:48 p.m.