Triple

T6448658
Position Surface form Disambiguated ID Type / Status
Subject Port Jervis Line E139807 entity
Predicate usesInfrastructure P6820 FINISHED
Object Norfolk Southern Southern Tier Line E345742 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: Norfolk Southern Southern Tier Line | Statement: [Port Jervis Line, usesInfrastructure, Norfolk Southern Southern Tier 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: Norfolk Southern Southern Tier Line
Context triple: [Port Jervis Line, usesInfrastructure, Norfolk Southern Southern Tier Line]
  • A. Norfolk Southern Southern Tier Line chosen
    The Norfolk Southern Southern Tier Line is a freight rail corridor in New York State that also hosts Metro-North’s Port Jervis Line commuter service.
  • B. CSX Trenton Subdivision
    The CSX Trenton Subdivision is a freight rail line in the northeastern United States operated by CSX Transportation, forming part of a major corridor between Philadelphia and North Jersey.
  • C. CSX Transportation Cumberland Subdivision
    CSX Transportation's Cumberland Subdivision is a major freight rail line running through Maryland and West Virginia that also hosts MARC commuter rail service on the Brunswick Line.
  • D. CSX Transportation Metropolitan Subdivision
    The CSX Transportation Metropolitan Subdivision is a major freight and passenger rail corridor in Maryland and the Washington, D.C. area, forming part of CSX's network and hosting MARC commuter rail service.
  • E. CSX RF&P Subdivision
    The CSX RF&P Subdivision is a major CSX Transportation rail line in Virginia that forms part of the busy freight and passenger corridor linking Washington, D.C. with Richmond and points south.
  • 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_69c008b301948190a35854e5284dc822 elicitation completed
NER batch_69c069b1a61c81908610264c098d25b0 ner completed
NED1 batch_69c64bcfc7388190877ad702ea44802d ned_source_triple completed
Created at: March 22, 2026, 4:47 p.m.