Triple

T6514091
Position Surface form Disambiguated ID Type / Status
Subject Center City E148208 entity
Predicate servedBy P82 FINISHED
Object SEPTA Market–Frankford Line E1071 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 Market–Frankford Line | Statement: [Center City, servedBy, SEPTA Market–Frankford Line]

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 Market–Frankford Line
Context triple: [Center City, servedBy, SEPTA Market–Frankford Line]
  • A. SEPTA Market–Frankford Line chosen
    The SEPTA Market–Frankford Line is a major rapid transit route in Philadelphia that runs east–west across the city, connecting key neighborhoods and commercial districts.
  • B. 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.
  • C. Manayunk/Norristown Line
    The Manayunk/Norristown Line is a commuter rail route in the Philadelphia region that runs along the Schuylkill River, connecting Center City Philadelphia with Manayunk, Norristown, and surrounding suburbs.
  • D. SEPTA Chestnut Hill East Line
    The SEPTA Chestnut Hill East Line is a commuter rail service in the Philadelphia area that runs between Center City and the Chestnut Hill neighborhood as part of SEPTA’s Regional Rail network.
  • E. Fairmount Line
    The Fairmount Line is a commuter rail service in the Boston area that connects South Station with neighborhoods in Dorchester, Mattapan, and Hyde Park.
  • 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_69c687e68e748190baceb9298f32d3ed elicitation completed
NER batch_69c69f3db330819092503af4fb0649ea ner completed
NED1 batch_69c6d50f7d048190ad13dcd3f80c2eb4 ned_source_triple completed
Created at: March 27, 2026, 1:44 p.m.