Triple

T12533688
Position Surface form Disambiguated ID Type / Status
Subject Huntington, West Virginia E299631 entity
Predicate servedByRailroad P782 FINISHED
Object Norfolk Southern Railway E11672 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 Railway | Statement: [Huntington, West Virginia, servedByRailroad, Norfolk Southern Railway]

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 Railway
Context triple: [Huntington, West Virginia, servedByRailroad, Norfolk Southern Railway]
  • A. Norfolk Southern Railway chosen
    Norfolk Southern Railway is a major U.S. freight railroad company operating an extensive rail network across the eastern United States.
  • B. CSX Transportation
    CSX Transportation is a major U.S. freight railroad company operating an extensive rail network across the eastern United States.
  • C. Norfolk and Western Railway
    Norfolk and Western Railway was a major American railroad known for its coal-hauling operations and distinctive steam locomotive fleet, which later became part of Norfolk Southern Railway through merger.
  • D. CSX
    CSX is the IATA airport code for Changsha Huanghua International Airport, the main air gateway serving Changsha in Hunan Province, China.
  • E. Consolidated Rail Corporation
    Consolidated Rail Corporation, commonly known as Conrail, was a major U.S. freight railroad created in the 1970s to take over and revitalize the operations of several bankrupt Northeastern railroads.
  • 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_69d6ada5cdd48190860d9ce30aff69be elicitation completed
NER batch_69d9546b8fd48190ae90e80785b2e2d1 ner completed
NED1 batch_69f65577e3388190b6c1c2e8dee7f6ac ned_source_triple completed
Created at: April 8, 2026, 9:57 p.m.