Triple

T472030
Position Surface form Disambiguated ID Type / Status
Subject SEPTA Broad Street Line E8578 entity
Predicate hasStation P35 FINISHED
Object Lombard–South station
Lombard–South station is an underground rapid transit stop on SEPTA’s Broad Street Line serving the South Philadelphia area of Philadelphia, Pennsylvania.
 E80745 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: Lombard–South station | Statement: [SEPTA Broad Street Line, hasStation, Lombard–South station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Lombard–South station
Context triple: [SEPTA Broad Street Line, hasStation, Lombard–South station]
  • A. Franconia–Springfield Metro station
    Franconia–Springfield Metro station is a major Washington Metro and Virginia Railway Express transit hub in Fairfax County, Virginia, serving as the southwestern terminus of the Blue Line and a key park-and-ride facility for commuters.
  • B. Riverside station
    Riverside station is a major Massachusetts Bay Transportation Authority light rail station and park-and-ride hub located in Newton, Massachusetts.
  • C. Embarcadero station
    Embarcadero station is a major San Francisco Bay Area Rapid Transit (BART) and Muni Metro hub located at the eastern edge of downtown near the Ferry Building and the Embarcadero waterfront.
  • D. Metra Rock Island District 35th Street station
    Metra Rock Island District 35th Street station is a commuter rail stop in Chicago serving the Rock Island District line, located near Guaranteed Rate Field and providing access to the surrounding Bronzeville and Bridgeport areas.
  • E. St. Clair West station
    St. Clair West station is a Toronto Transit Commission subway station on Line 1 serving the St. Clair Avenue West corridor in midtown Toronto.
  • 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: Lombard–South station
Triple: [SEPTA Broad Street Line, hasStation, Lombard–South station]
Generated description
Lombard–South station is an underground rapid transit stop on SEPTA’s Broad Street Line serving the South Philadelphia area of Philadelphia, Pennsylvania.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Lombard–South station
Target entity description: Lombard–South station is an underground rapid transit stop on SEPTA’s Broad Street Line serving the South Philadelphia area of Philadelphia, Pennsylvania.
  • A. Franconia–Springfield Metro station
    Franconia–Springfield Metro station is a major Washington Metro and Virginia Railway Express transit hub in Fairfax County, Virginia, serving as the southwestern terminus of the Blue Line and a key park-and-ride facility for commuters.
  • B. Riverside station
    Riverside station is a major Massachusetts Bay Transportation Authority light rail station and park-and-ride hub located in Newton, Massachusetts.
  • C. Embarcadero station
    Embarcadero station is a major San Francisco Bay Area Rapid Transit (BART) and Muni Metro hub located at the eastern edge of downtown near the Ferry Building and the Embarcadero waterfront.
  • D. Metra Rock Island District 35th Street station
    Metra Rock Island District 35th Street station is a commuter rail stop in Chicago serving the Rock Island District line, located near Guaranteed Rate Field and providing access to the surrounding Bronzeville and Bridgeport areas.
  • E. St. Clair West station
    St. Clair West station is a Toronto Transit Commission subway station on Line 1 serving the St. Clair Avenue West corridor in midtown Toronto.
  • 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_69a2e7f3aeb48190a19453e3a043f486 completed Feb. 28, 2026, 1:04 p.m.
NER Named-entity recognition batch_69a2eff24108819092fdb85019ec4089 completed Feb. 28, 2026, 1:38 p.m.
NED1 Entity disambiguation (via context triple) batch_69a57b51a58481909d8e602b3fe3c68c completed March 2, 2026, 11:58 a.m.
NEDg Description generation batch_69a57dbe4aa88190ad6d185f8151f85b completed March 2, 2026, 12:08 p.m.
NED2 Entity disambiguation (via description) batch_69a57e3b4d448190bd7f4a6249b7e3a1 completed March 2, 2026, 12:10 p.m.
Created at: Feb. 28, 2026, 1:12 p.m.