Triple

T15036942
Position Surface form Disambiguated ID Type / Status
Subject UP Express E378500 entity
Predicate terminus P388 FINISHED
Object Union Station
Union Station is Toronto’s primary railway and transit hub, serving as a central gateway for regional, intercity, and airport-bound rail services.
E149870 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 | Statement: [UP Express, terminus, Union Station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Union Station
Context triple: [UP Express, terminus, Union Station]
  • A. Union Station
    Union Station was a historic railroad terminal in downtown Houston, Texas, whose former site and preserved facade now form part of the Minute Maid Park baseball stadium complex.
  • B. Union Station
    Union Station is a renowned American bluegrass and country band best known for its long-running collaboration with Alison Krauss and its virtuosic acoustic instrumentation.
  • C. Union Station
    Union Station is the main railway station and a historic transportation hub in downtown Los Angeles, renowned for its Mission Revival and Art Deco architecture.
  • D. Union Station
    Union Station is a historic former railroad terminal in St. Louis that has been transformed into a mixed-use complex featuring attractions, dining, and entertainment.
  • E. Union Station
    Union Station is a historic train station name commonly used for major passenger rail terminals in several North American cities.
  • 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
Triple: [UP Express, terminus, Union Station]
Generated description
Union Station is Toronto’s primary railway and transit hub, serving as a central gateway for regional, intercity, and airport-bound rail services.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Union Station
Target entity description: Union Station is Toronto’s primary railway and transit hub, serving as a central gateway for regional, intercity, and airport-bound rail services.
  • A. Union Station chosen
    Union Station is Toronto’s primary railway and transit hub, connecting regional and intercity trains with the city’s subway and streetcar network.
  • B. Union Station
    Union Station is a major historic transportation hub in downtown Dallas that serves as a key rail and transit connection point for the city.
  • C. Union Station
    Union Station is a historic train station name commonly used for major passenger rail terminals in several North American cities.
  • D. Union Station
    Union Station is a historic Beaux-Arts transportation hub and major intercity rail terminal in Washington, D.C., serving as a gateway to the U.S. capital.
  • E. Union Station
    Union Station was the historic central railway terminal in Ottawa, Canada, later repurposed as the Senate of Canada Building.
  • F. None of above.

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_69d85cd46b2c819090d054c27787f677 completed April 10, 2026, 2:13 a.m.
NER Named-entity recognition batch_69ded82b29948190acda49cbec3f927a completed April 15, 2026, 12:13 a.m.
NED1 Entity disambiguation (via context triple) batch_69fe9ddfc13481909333690016650410 completed May 9, 2026, 2:37 a.m.
NEDg Description generation batch_69fe9e7e12488190972b383d66a2651e completed May 9, 2026, 2:39 a.m.
NED2 Entity disambiguation (via description) batch_69fe9f0dd1ac8190a802e9b388b9c770 completed May 9, 2026, 2:42 a.m.
Created at: April 10, 2026, 2:59 a.m.