Triple

T2741906
Position Surface form Disambiguated ID Type / Status
Subject Union Station (Toronto) E60768 entity
Predicate formerStructureOnSite P14623 FINISHED
Object second Union Station (opened 1895)
The second Union Station, opened in 1895, was a former major railway terminal in Toronto that preceded the city’s current Union Station.
 E295983 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: second Union Station (opened 1895) | Statement: [Union Station (Toronto), formerStructureOnSite, second Union Station (opened 1895)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: second Union Station (opened 1895)
Context triple: [Union Station (Toronto), formerStructureOnSite, second Union Station (opened 1895)]
  • A. Union Depot station
    Union Depot station is a major multimodal transit hub in downtown Saint Paul, Minnesota, serving light rail, intercity trains, and buses.
  • B. Springfield Union Station
    Springfield Union Station is a historic intermodal transportation hub in downtown Springfield, Massachusetts, serving as a major regional center for rail and bus travel.
  • C. Main Street station
    Main Street station is a Toronto Transit Commission subway station in the city's east end that serves as a local hub for the Bloor–Danforth line and nearby surface transit routes.
  • D. Cecil B. Moore station
    Cecil B. Moore station is a subway stop on Philadelphia’s Broad Street Line serving the Temple University area and surrounding North Philadelphia neighborhoods.
  • E. Dallas Union Station
    Dallas Union Station is a historic railway and transit hub in downtown Dallas, Texas, serving Amtrak, commuter rail, and local light rail services.
  • 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: second Union Station (opened 1895)
Triple: [Union Station (Toronto), formerStructureOnSite, second Union Station (opened 1895)]
Generated description
The second Union Station, opened in 1895, was a former major railway terminal in Toronto that preceded the city’s current Union Station.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: second Union Station (opened 1895)
Target entity description: The second Union Station, opened in 1895, was a former major railway terminal in Toronto that preceded the city’s current Union Station.
  • A. Union Depot station
    Union Depot station is a major multimodal transit hub in downtown Saint Paul, Minnesota, serving light rail, intercity trains, and buses.
  • B. Springfield Union Station
    Springfield Union Station is a historic intermodal transportation hub in downtown Springfield, Massachusetts, serving as a major regional center for rail and bus travel.
  • C. Main Street station
    Main Street station is a Toronto Transit Commission subway station in the city's east end that serves as a local hub for the Bloor–Danforth line and nearby surface transit routes.
  • D. Cecil B. Moore station
    Cecil B. Moore station is a subway stop on Philadelphia’s Broad Street Line serving the Temple University area and surrounding North Philadelphia neighborhoods.
  • E. Dallas Union Station
    Dallas Union Station is a historic railway and transit hub in downtown Dallas, Texas, serving Amtrak, commuter rail, and local light rail services.
  • 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_69ab4b77febc819095603eb012cd141b completed March 6, 2026, 9:47 p.m.
NER Named-entity recognition batch_69abdd1fc30c81909ac06588d50abdf8 completed March 7, 2026, 8:09 a.m.
NED1 Entity disambiguation (via context triple) batch_69afbbca8ac081909ce86d4cd911b4f1 completed March 10, 2026, 6:35 a.m.
NEDg Description generation batch_69afbcc1dd988190826ab05e55adf1ee completed March 10, 2026, 6:40 a.m.
NED2 Entity disambiguation (via description) batch_69afbd452e1c8190a3ee9eaf642e80a0 completed March 10, 2026, 6:42 a.m.
Created at: March 6, 2026, 9:56 p.m.