Triple

T12059991
Position Surface form Disambiguated ID Type / Status
Subject Baltimore rail network E287140 entity
Predicate partOfCorridor P840 FINISHED
Object Boston–Washington Northeast rail corridor E2775 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: Boston–Washington Northeast rail corridor | Statement: [Baltimore rail network, partOfCorridor, Boston–Washington Northeast rail corridor]

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: Boston–Washington Northeast rail corridor
Context triple: [Baltimore rail network, partOfCorridor, Boston–Washington Northeast rail corridor]
  • A. Northeast Corridor chosen
    The Northeast Corridor is the busiest passenger rail line in the United States, running primarily Amtrak and commuter trains along the urbanized spine of the East Coast between major cities such as Washington, D.C., Philadelphia, New York City, and Boston.
  • B. Boston–Albany rail corridor
    The Boston–Albany rail corridor is a key east–west passenger and freight rail route linking Boston, Massachusetts with Albany, New York across the heart of New England.
  • C. Washington–Baltimore rail corridor
    The Washington–Baltimore rail corridor is a heavily traveled rail route linking the U.S. capital with Baltimore, used by both passenger and freight services and forming a key segment of the Northeast transportation network.
  • D. I-95 Northeast Corridor
    The I-95 Northeast Corridor is a heavily traveled stretch of Interstate 95 running through major cities in the northeastern United States, serving as a key artery for regional and long-distance traffic.
  • E. Amtrak Empire Corridor
    The Amtrak Empire Corridor is a major passenger rail route in New York State that connects New York City with Albany and other upstate cities along the Hudson River and beyond.
  • 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_69d6ab4780948190bdb9f7620c2ac27e elicitation completed
NER batch_69d9043dbccc8190bf9da181f826f0d8 ner completed
NED1 batch_69f60a64c8bc8190920c1ed858ea4794 ned_source_triple completed
Created at: April 8, 2026, 9:47 p.m.