Triple

T1031068
Position Surface form Disambiguated ID Type / Status
Subject PATCO Speedline E22251 entity
Predicate terminus P388 FINISHED
Object 15–16th & Locust station
15–16th & Locust station is an underground rapid transit station in Center City Philadelphia serving as the western terminus of the PATCO Speedline.
 E121449 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: 15–16th & Locust station | Statement: [PATCO Speedline, terminus, 15–16th & Locust station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: 15–16th & Locust station
Context triple: [PATCO Speedline, terminus, 15–16th & Locust station]
  • A. 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.
  • B. 22nd Street station
    22nd Street station is an underground trolley stop in Center City Philadelphia serving SEPTA’s Subway–Surface Trolley Lines.
  • C. 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.
  • D. Walnut–Locust station
    Walnut–Locust station is an underground rapid transit stop in Center City Philadelphia serving passengers on SEPTA’s Broad Street Line.
  • E. 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.
  • 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: 15–16th & Locust station
Triple: [PATCO Speedline, terminus, 15–16th & Locust station]
Generated description
15–16th & Locust station is an underground rapid transit station in Center City Philadelphia serving as the western terminus of the PATCO Speedline.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: 15–16th & Locust station
Target entity description: 15–16th & Locust station is an underground rapid transit station in Center City Philadelphia serving as the western terminus of the PATCO Speedline.
  • A. 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.
  • B. 22nd Street station
    22nd Street station is an underground trolley stop in Center City Philadelphia serving SEPTA’s Subway–Surface Trolley Lines.
  • C. 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.
  • D. Walnut–Locust station
    Walnut–Locust station is an underground rapid transit stop in Center City Philadelphia serving passengers on SEPTA’s Broad Street Line.
  • E. 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.
  • 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_69a493d848848190aed4011b34b2e8d3 completed March 1, 2026, 7:30 p.m.
NER Named-entity recognition batch_69a4b810429081908a97014ca740824b completed March 1, 2026, 10:05 p.m.
NED1 Entity disambiguation (via context triple) batch_69ac3bbf5a1c819086e1ff529d05f311 completed March 7, 2026, 2:52 p.m.
NEDg Description generation batch_69ac3d80db008190b71b893f9d78ba4b completed March 7, 2026, 3 p.m.
NED2 Entity disambiguation (via description) batch_69ac3df3fea8819080b83c840ffd59a8 completed March 7, 2026, 3:02 p.m.
Created at: March 1, 2026, 7:41 p.m.