Triple

T472021
Position Surface form Disambiguated ID Type / Status
Subject SEPTA Broad Street Line E8578 entity
Predicate hasStation P35 FINISHED
Object Walnut–Locust station
Walnut–Locust station is an underground rapid transit stop in Center City Philadelphia serving passengers on SEPTA’s Broad Street Line.
 E79568 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: Walnut–Locust station | Statement: [SEPTA Broad Street Line, hasStation, Walnut–Locust station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Walnut–Locust station
Context triple: [SEPTA Broad Street Line, hasStation, Walnut–Locust station]
  • A. Braintree station
    Braintree station is a Massachusetts Bay Transportation Authority (MBTA) rapid transit and commuter rail station in Braintree, Massachusetts, serving as a major park-and-ride hub on Boston’s South Shore.
  • B. Eisenhower Avenue station
    Eisenhower Avenue station is a Washington Metro rapid transit stop serving the Yellow Line in Alexandria, Virginia, near the Eisenhower Avenue corridor and adjacent commercial and residential areas.
  • C. Lawrence West station
    Lawrence West station is a subway station on Toronto's Line 1 Yonge–University, serving the Lawrence Heights and surrounding North York area.
  • D. Kenmore station
    Kenmore station is a major Boston transit hub on the MBTA Green Line that serves as a key access point to Fenway Park and nearby Boston University.
  • E. Crescent Street station
    Crescent Street station is a New York City Subway station in Brooklyn served by the J train.
  • 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: Walnut–Locust station
Triple: [SEPTA Broad Street Line, hasStation, Walnut–Locust station]
Generated description
Walnut–Locust station is an underground rapid transit stop in Center City Philadelphia serving passengers on SEPTA’s Broad Street Line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Walnut–Locust station
Target entity description: Walnut–Locust station is an underground rapid transit stop in Center City Philadelphia serving passengers on SEPTA’s Broad Street Line.
  • A. Braintree station
    Braintree station is a Massachusetts Bay Transportation Authority (MBTA) rapid transit and commuter rail station in Braintree, Massachusetts, serving as a major park-and-ride hub on Boston’s South Shore.
  • B. Eisenhower Avenue station
    Eisenhower Avenue station is a Washington Metro rapid transit stop serving the Yellow Line in Alexandria, Virginia, near the Eisenhower Avenue corridor and adjacent commercial and residential areas.
  • C. Lawrence West station
    Lawrence West station is a subway station on Toronto's Line 1 Yonge–University, serving the Lawrence Heights and surrounding North York area.
  • D. Kenmore station
    Kenmore station is a major Boston transit hub on the MBTA Green Line that serves as a key access point to Fenway Park and nearby Boston University.
  • E. Crescent Street station
    Crescent Street station is a New York City Subway station in Brooklyn served by the J train.
  • 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_69a56ee8472081908f3d3bed26a40aca completed March 2, 2026, 11:05 a.m.
NEDg Description generation batch_69a5714659dc8190aac2b41e4e149997 completed March 2, 2026, 11:15 a.m.
NED2 Entity disambiguation (via description) batch_69a571a98c208190872831a707419dc3 completed March 2, 2026, 11:16 a.m.
Created at: Feb. 28, 2026, 1:12 p.m.