Triple

T22284766
Position Surface form Disambiguated ID Type / Status
Subject SEPTA Broad–Ridge Spur E550828 entity
Predicate usesRollingStock P5426 FINISHED
Object SEPTA Broad Street Line subway cars NE NERFINISHED

How this triple was built (2 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: SEPTA Broad Street Line subway cars | Statement: [SEPTA Broad–Ridge Spur, usesRollingStock, SEPTA Broad Street Line subway cars]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: SEPTA Broad Street Line subway cars
Context triple: [SEPTA Broad–Ridge Spur, usesRollingStock, SEPTA Broad Street Line subway cars]
  • A. Broad Street Line subway cars chosen
    Broad Street Line subway cars are the rapid transit vehicles used on Philadelphia's Broad Street Line, designed for high-capacity urban subway service.
  • B. SEPTA Subway–Surface Trolley Lines
    The SEPTA Subway–Surface Trolley Lines are a network of light rail routes in Philadelphia that operate partly in subway tunnels and partly on city streets, connecting Center City with West Philadelphia and surrounding neighborhoods.
  • C. SEPTA trolley cars
    SEPTA trolley cars are the light rail vehicles used by Philadelphia’s transit authority to provide streetcar and subway–surface trolley service across the city.
  • D. SEPTA Subway
    SEPTA Subway is the rapid transit network serving Philadelphia and some surrounding areas, operated by the Southeastern Pennsylvania Transportation Authority and centered on the Broad Street and Market–Frankford lines.
  • E. SEPTA Broad Street Line
    The SEPTA Broad Street Line is a rapid transit subway line running primarily along Broad Street in Philadelphia, providing north–south service through the city’s central corridor.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (2 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_69e11e44d538819097c6b8f333af3352 completed April 16, 2026, 5:37 p.m.
NER Named-entity recognition batch_69f15606948c81909ebaa5ea106d2b7a completed April 29, 2026, 12:51 a.m.
Created at: April 16, 2026, 8:40 p.m.