Triple

T92363
Position Surface form Disambiguated ID Type / Status
Subject SEPTA Subway–Surface Trolley Lines E1855 entity
Predicate centralTunnelTerminus P388 FINISHED
Object 37th Street station
37th Street station is a Philadelphia trolley stop on SEPTA’s Subway–Surface Lines serving the University City area near the University of Pennsylvania.
 E28002 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: 37th Street station | Statement: [SEPTA Subway–Surface Trolley Lines, centralTunnelTerminus, 37th Street station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: 37th Street station
Context triple: [SEPTA Subway–Surface Trolley Lines, centralTunnelTerminus, 37th Street station]
  • A. 33rd Street station
    33rd Street station is a major underground trolley stop in Philadelphia serving SEPTA’s Subway–Surface lines near Drexel University and the University of Pennsylvania.
  • B. 15th Street station
    15th Street station is a major underground transit hub in Center City Philadelphia that connects SEPTA’s subway–surface trolleys with the Market–Frankford Line and nearby regional rail services.
  • C. 22nd Street station
    22nd Street station is an underground trolley stop in Center City Philadelphia serving SEPTA’s Subway–Surface Trolley Lines.
  • D. 36th Street station
    36th Street station is a key SEPTA trolley stop in Philadelphia serving the Subway–Surface Trolley Lines near the University of Pennsylvania.
  • E. 19th Street station
    19th Street station is an underground trolley stop in Center City Philadelphia serving SEPTA’s Subway–Surface Trolley Lines.
  • 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: 37th Street station
Triple: [SEPTA Subway–Surface Trolley Lines, centralTunnelTerminus, 37th Street station]
Generated description
37th Street station is a Philadelphia trolley stop on SEPTA’s Subway–Surface Lines serving the University City area near the University of Pennsylvania.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: 37th Street station
Target entity description: 37th Street station is a Philadelphia trolley stop on SEPTA’s Subway–Surface Lines serving the University City area near the University of Pennsylvania.
  • A. 33rd Street station
    33rd Street station is a major underground trolley stop in Philadelphia serving SEPTA’s Subway–Surface lines near Drexel University and the University of Pennsylvania.
  • B. 15th Street station
    15th Street station is a major underground transit hub in Center City Philadelphia that connects SEPTA’s subway–surface trolleys with the Market–Frankford Line and nearby regional rail services.
  • C. 22nd Street station
    22nd Street station is an underground trolley stop in Center City Philadelphia serving SEPTA’s Subway–Surface Trolley Lines.
  • D. 36th Street station
    36th Street station is a key SEPTA trolley stop in Philadelphia serving the Subway–Surface Trolley Lines near the University of Pennsylvania.
  • E. 19th Street station
    19th Street station is an underground trolley stop in Center City Philadelphia serving SEPTA’s Subway–Surface Trolley Lines.
  • 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_69a24d1a97dc819094e6c021fe9b05a7 completed Feb. 28, 2026, 2:04 a.m.
NER Named-entity recognition batch_69a2567dd770819088eb77ffc6d2d1cf completed Feb. 28, 2026, 2:44 a.m.
NED1 Entity disambiguation (via context triple) batch_69a34761406481908807a9849b747e42 completed Feb. 28, 2026, 7:52 p.m.
NEDg Description generation batch_69a3487920b081909fe53b5ae50693b9 completed Feb. 28, 2026, 7:56 p.m.
NED2 Entity disambiguation (via description) batch_69a348c5dfec8190b4bbe10e5e2ebc12 completed Feb. 28, 2026, 7:57 p.m.
Created at: Feb. 28, 2026, 2:07 a.m.