Triple

T21087992
Position Surface form Disambiguated ID Type / Status
Subject Walnut–Locust station E519553 entity
Predicate partOfSystem P840 FINISHED
Object SEPTA City Transit Division — NE NERFINISHED

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 City Transit Division | Statement: [Walnut–Locust station, partOfSystem, SEPTA City Transit Division]

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 City Transit Division
Context triple: [Walnut–Locust station, partOfSystem, SEPTA City Transit Division]
  • A. SEPTA City Transit Division chosen
    The SEPTA City Transit Division is the branch of Philadelphia’s regional transit authority that operates the city’s buses, trolleys, and subway–elevated lines.
  • B. SEPTA
    SEPTA is the regional public transportation authority serving Philadelphia and its surrounding counties, operating buses, subways, trolleys, and commuter rail services.
  • C. 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.
  • D. Philadelphia Suburban Transportation Company
    The Philadelphia Suburban Transportation Company was a private transit operator that ran suburban trolley and bus services in the Philadelphia region before being absorbed into the Southeastern Pennsylvania Transportation Authority (SEPTA).
  • E. 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.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (2 batches)

Stage Batch ID Job type Status
creating batch_69e0b507dd9081908fb8bfcbef4c8b46 elicitation completed
NER batch_69e7094cebe08190bb10f51a45c244ec ner completed
Created at: April 16, 2026, 2:50 p.m.