Triple

T14840278
Position Surface form Disambiguated ID Type / Status
Subject Northwest Philadelphia E348942 entity
Predicate hasTransportation P105 FINISHED
Object Chestnut Hill West Line E28964 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: Chestnut Hill West Line | Statement: [Northwest Philadelphia, hasTransportation, Chestnut Hill West 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: Chestnut Hill West Line
Context triple: [Northwest Philadelphia, hasTransportation, Chestnut Hill West Line]
  • A. Chestnut Hill West Line chosen
    The Chestnut Hill West Line is a commuter rail service in the Philadelphia area that connects Center City with the Chestnut Hill neighborhood.
  • B. Chestnut Hill East Line
    Chestnut Hill East Line is a commuter rail service in the Philadelphia area operated as part of SEPTA’s Regional Rail network.
  • C. Green Line West Branch
    The Green Line West Branch is a segment of Chicago's 'L' rapid transit system that carries Green Line trains between Harlem/Lake and Ashland/63rd on the city's West Side.
  • D. Lowell Line
    The Lowell Line is a Massachusetts Bay Transportation Authority commuter rail route that runs between Boston’s North Station and the city of Lowell, serving communities in the Merrimack Valley.
  • E. Medway Valley Line
    The Medway Valley Line is a railway route in Kent, England, running along the River Medway and connecting towns such as Strood, Maidstone and Paddock Wood.
  • 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_69d822ec69008190a9232caa68836872 elicitation completed
NER batch_69ded28e40f08190b309d8ac6404d2fc ner completed
NED1 batch_69fe64fe89e88190912cd205feef85d3 ned_source_triple completed
Created at: April 10, 2026, 1:53 a.m.