Triple

T12206592
Position Surface form Disambiguated ID Type / Status
Subject Broad Street Line subway cars E290851 entity
Predicate network P2637 FINISHED
Object SEPTA Subway–Surface and Rapid Transit system E1855 NE FINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

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 Subway–Surface and Rapid Transit system | Statement: [Broad Street Line subway cars, network, SEPTA Subway–Surface and Rapid Transit system]

Disambiguation candidates (1 decision)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: SEPTA Subway–Surface and Rapid Transit system
Context triple: [Broad Street Line subway cars, network, SEPTA Subway–Surface and Rapid Transit system]
  • A. SEPTA rapid transit network
    The SEPTA rapid transit network is the system of high-capacity urban rail lines serving Philadelphia and some surrounding suburbs, operated by the Southeastern Pennsylvania Transportation Authority.
  • B. 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.
  • C. SEPTA Regional Rail
    SEPTA Regional Rail is a commuter rail network serving the Philadelphia metropolitan area, connecting the city with its suburbs and neighboring regions.
  • D. SEPTA Suburban Transit Division
    The SEPTA Suburban Transit Division is the part of Philadelphia’s regional transit system that operates bus, trolley, and other public transportation services in the suburban areas surrounding the city.
  • E. SEPTA Subway–Surface Trolley Lines chosen
    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.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 batches)

Stage Batch ID Job type Status
creating batch_69d6ab65923081909acfc61b7a612233 elicitation completed
NER batch_69d91c7d8f5c8190a46e9caa2a920fa9 ner completed
NED1 batch_69f6345c27508190bd2e9d466ebce73c ned_source_triple completed
Created at: April 8, 2026, 9:51 p.m.