Triple

T187891
Position Surface form Disambiguated ID Type / Status
Subject Empire Builder E4022 entity
Predicate endStationPortland P3569 FINISHED
Object Portland Union Station
Portland Union Station is a historic railway terminal in Portland, Oregon, serving as a major Amtrak hub for intercity passenger trains in the Pacific Northwest.
E35533 NE FINISHED

How this triple was built (5 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: Portland Union Station | Statement: [Empire Builder, endStationPortland, Portland Union Station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Portland Union Station
Context triple: [Empire Builder, endStationPortland, Portland Union Station]
  • A. Rose Quarter Transit Center
    Rose Quarter Transit Center is a major public transit hub in Portland, Oregon, serving multiple MAX light rail lines and bus routes near the city’s Rose Quarter sports and entertainment district.
  • B. 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.
  • 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 Beaux-Arts transportation hub and major intercity rail terminal in Washington, D.C., serving as a gateway to the U.S. capital.
  • E. Beaverton Transit Center
    Beaverton Transit Center is a major public transportation hub in Beaverton, Oregon, serving as an interchange point for light rail and multiple bus lines in the Portland metropolitan area.
  • 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: Portland Union Station
Triple: [Empire Builder, endStationPortland, Portland Union Station]
Generated description
Portland Union Station is a historic railway terminal in Portland, Oregon, serving as a major Amtrak hub for intercity passenger trains in the Pacific Northwest.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Portland Union Station
Target entity description: Portland Union Station is a historic railway terminal in Portland, Oregon, serving as a major Amtrak hub for intercity passenger trains in the Pacific Northwest.
  • A. Rose Quarter Transit Center
    Rose Quarter Transit Center is a major public transit hub in Portland, Oregon, serving multiple MAX light rail lines and bus routes near the city’s Rose Quarter sports and entertainment district.
  • B. 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.
  • 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 Beaux-Arts transportation hub and major intercity rail terminal in Washington, D.C., serving as a gateway to the U.S. capital.
  • E. Beaverton Transit Center
    Beaverton Transit Center is a major public transportation hub in Beaverton, Oregon, serving as an interchange point for light rail and multiple bus lines in the Portland metropolitan area.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: endStationPortland
Context triple: [Empire Builder, endStationPortland, Portland Union Station]
  • A. terminusCity
    Indicates that a transportation route or service ends or has its final stop in a particular city.
  • B. terminusEast chosen
    Indicates that one entity serves as the eastern endpoint or final stop of another entity, such as a route, line, or path.
  • C. hasRailStation
    Indicates that one entity possesses, contains, or is served by a rail station.
  • D. hasRailwayStation
    Indicates that a place or location is served by, or contains, a railway station.
  • E. hasPassengerTerminal
    Indicates that one entity possesses or is equipped with a passenger terminal used for boarding, alighting, or handling passengers.
  • F. None of above.

Provenance (6 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_69a25497e2f08190a040f8c6e1842643 completed Feb. 28, 2026, 2:36 a.m.
NER Named-entity recognition batch_69a2594940e48190a3d8efbce46241c3 completed Feb. 28, 2026, 2:56 a.m.
NED1 Entity disambiguation (via context triple) batch_69a38f4c7dbc8190bd240d574dbe77ae completed March 1, 2026, 12:58 a.m.
NEDg Description generation batch_69a38fd6772081908bbaf308bdbcd5f6 completed March 1, 2026, 1:01 a.m.
NED2 Entity disambiguation (via description) batch_69a3908a50088190a7cea3de890a8e86 completed March 1, 2026, 1:04 a.m.
PD Predicate disambiguation batch_69a25672332081909386f35f3ca15dd2 completed Feb. 28, 2026, 2:44 a.m.
Created at: Feb. 28, 2026, 2:40 a.m.