Triple

T2163226
Position Surface form Disambiguated ID Type / Status
Subject Toronto subway E46847 entity
Predicate hasStation P35 FINISHED
Object Union station (TTC)
Union station (TTC) is a major downtown Toronto subway station and transit hub that connects multiple subway lines with regional rail and other transportation services.
 E239025 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: Union station (TTC) | Statement: [Toronto subway, hasStation, Union station (TTC)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Union station (TTC)
Context triple: [Toronto subway, hasStation, Union station (TTC)]
  • A. Sheppard–Yonge station
    Sheppard–Yonge station is a major Toronto subway interchange where the Yonge–University line connects with the Sheppard line, serving as a key transit hub in North York.
  • B. Spadina station
    Spadina station is a major Toronto subway interchange that connects the Yonge–University and Bloor–Danforth lines, serving the Spadina and Annex neighborhoods.
  • C. North York Centre station
    North York Centre station is a busy underground subway stop in Toronto’s North York district, serving the commercial and civic hub around Mel Lastman Square.
  • D. Bloor–Yonge station
    Bloor–Yonge station is one of Toronto’s busiest subway hubs, serving as a major transfer point between the city’s primary north–south and east–west rapid transit lines.
  • E. Brampton GO Station
    Brampton GO Station is a commuter rail and bus transit hub in Brampton, Ontario, serving GO Transit and regional passengers on the Kitchener line.
  • 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: Union station (TTC)
Triple: [Toronto subway, hasStation, Union station (TTC)]
Generated description
Union station (TTC) is a major downtown Toronto subway station and transit hub that connects multiple subway lines with regional rail and other transportation services.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Union station (TTC)
Target entity description: Union station (TTC) is a major downtown Toronto subway station and transit hub that connects multiple subway lines with regional rail and other transportation services.
  • A. Sheppard–Yonge station
    Sheppard–Yonge station is a major Toronto subway interchange where the Yonge–University line connects with the Sheppard line, serving as a key transit hub in North York.
  • B. Spadina station
    Spadina station is a major Toronto subway interchange that connects the Yonge–University and Bloor–Danforth lines, serving the Spadina and Annex neighborhoods.
  • C. North York Centre station
    North York Centre station is a busy underground subway stop in Toronto’s North York district, serving the commercial and civic hub around Mel Lastman Square.
  • D. Bloor–Yonge station
    Bloor–Yonge station is one of Toronto’s busiest subway hubs, serving as a major transfer point between the city’s primary north–south and east–west rapid transit lines.
  • E. Brampton GO Station
    Brampton GO Station is a commuter rail and bus transit hub in Brampton, Ontario, serving GO Transit and regional passengers on the Kitchener line.
  • 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_69a88a184cbc8190877791f6552c2484 completed March 4, 2026, 7:38 p.m.
NER Named-entity recognition batch_69abbe8d105c819098371c35c88873dc completed March 7, 2026, 5:58 a.m.
NED1 Entity disambiguation (via context triple) batch_69ae58ee18ac81909f02e2c87000365b completed March 9, 2026, 5:21 a.m.
NEDg Description generation batch_69ae597198b88190b0253aa121ed35e1 completed March 9, 2026, 5:24 a.m.
NED2 Entity disambiguation (via description) batch_69ae5a02404c819088acf7c592cb2cae completed March 9, 2026, 5:26 a.m.
Created at: March 4, 2026, 7:45 p.m.