Triple

T14311290
Position Surface form Disambiguated ID Type / Status
Subject West Coast Express E354837 entity
Predicate terminus P388 FINISHED
Object Mission City station
Mission City station is a commuter rail station in Mission, British Columbia, serving as the eastern endpoint of Vancouver’s West Coast Express line.
 E1092910 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: Mission City station | Statement: [West Coast Express, terminus, Mission City station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Mission City station
Context triple: [West Coast Express, terminus, Mission City station]
  • A. Columbia City Station
    Columbia City Station is a light rail stop in Seattle’s Columbia City neighborhood, serving Sound Transit’s Link light rail system.
  • B. Las Parcelas station
    Las Parcelas station is a stop on Santiago’s Metro system serving Line 5 in the city’s western sector.
  • C. Garfield station
    Garfield station is a Chicago 'L' rapid transit station on the South Side that serves as the southern endpoint of the Ashland/63rd branch of the Green Line.
  • D. Riverside station
    Riverside station is a commuter rail stop on the Metro-North Railroad’s New Haven Line serving the Riverside neighborhood of Greenwich, Connecticut.
  • E. Riverside station
    Riverside station is a major Massachusetts Bay Transportation Authority light rail station and park-and-ride hub located in Newton, Massachusetts.
  • 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: Mission City station
Triple: [West Coast Express, terminus, Mission City station]
Generated description
Mission City station is a commuter rail station in Mission, British Columbia, serving as the eastern endpoint of Vancouver’s West Coast Express line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Mission City station
Target entity description: Mission City station is a commuter rail station in Mission, British Columbia, serving as the eastern endpoint of Vancouver’s West Coast Express line.
  • A. Columbia City Station
    Columbia City Station is a light rail stop in Seattle’s Columbia City neighborhood, serving Sound Transit’s Link light rail system.
  • B. Las Parcelas station
    Las Parcelas station is a stop on Santiago’s Metro system serving Line 5 in the city’s western sector.
  • C. Garfield station
    Garfield station is a Chicago 'L' rapid transit station on the South Side that serves as the southern endpoint of the Ashland/63rd branch of the Green Line.
  • D. Riverside station
    Riverside station is a commuter rail stop on the Metro-North Railroad’s New Haven Line serving the Riverside neighborhood of Greenwich, Connecticut.
  • E. Riverside station
    Riverside station is a major Massachusetts Bay Transportation Authority light rail station and park-and-ride hub located in Newton, Massachusetts.
  • 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_69d8278ed42c8190b9f882dcce611347 completed April 9, 2026, 10:26 p.m.
NER Named-entity recognition batch_69de85b386d0819087d14f3ce84a1997 completed April 14, 2026, 6:21 p.m.
NED1 Entity disambiguation (via context triple) batch_69fd4684e2648190b46328252ac9d51b completed May 8, 2026, 2:12 a.m.
NEDg Description generation batch_69fd47479a0c8190a056cb00c62bfa52 completed May 8, 2026, 2:15 a.m.
NED2 Entity disambiguation (via description) batch_69fd4828f44c81908903d1391c83cc60 completed May 8, 2026, 2:19 a.m.
Created at: April 10, 2026, 1:12 a.m.