Triple

T11639451
Position Surface form Disambiguated ID Type / Status
Subject Coastal Classic E276620 entity
Predicate marketingDesignation P974 FINISHED
Object Coastal Classic Train
The Coastal Classic Train is a scenic passenger rail service in Alaska known for its dramatic views of mountains, glaciers, and coastline between Anchorage and Seward.
 E937427 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: Coastal Classic Train | Statement: [Coastal Classic, marketingDesignation, Coastal Classic Train]

Disambiguation candidates (2 decisions)

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: Coastal Classic Train
Context triple: [Coastal Classic, marketingDesignation, Coastal Classic Train]
  • A. Carolinian (Amtrak train)
    The Carolinian is a daily Amtrak passenger train that operates between Charlotte, North Carolina, and New York City, serving major cities along the East Coast.
  • B. Royal Blue passenger train
    The Royal Blue passenger train was a famed luxury streamliner that provided premier passenger service between New York City and Washington, D.C. for the Baltimore and Ohio Railroad.
  • C. Auto Train
    Auto Train is a long-distance Amtrak service that carries both passengers and their vehicles nonstop between the Washington, D.C. area and central Florida.
  • D. Amtrak Sunset Limited
    The Amtrak Sunset Limited is a long-distance passenger train route that runs between the American South and West, offering overnight service with Superliner bi-level cars.
  • E. CapeFlyer (seasonal passenger train)
    CapeFlyer is a seasonal passenger rail service that connects Boston to Cape Cod, providing convenient summer weekend transportation for tourists and commuters.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Coastal Classic Train
Target entity description: The Coastal Classic Train is a scenic passenger rail service in Alaska known for its dramatic views of mountains, glaciers, and coastline between Anchorage and Seward.
  • A. Carolinian (Amtrak train)
    The Carolinian is a daily Amtrak passenger train that operates between Charlotte, North Carolina, and New York City, serving major cities along the East Coast.
  • B. Royal Blue passenger train
    The Royal Blue passenger train was a famed luxury streamliner that provided premier passenger service between New York City and Washington, D.C. for the Baltimore and Ohio Railroad.
  • C. Auto Train
    Auto Train is a long-distance Amtrak service that carries both passengers and their vehicles nonstop between the Washington, D.C. area and central Florida.
  • D. Amtrak Sunset Limited
    The Amtrak Sunset Limited is a long-distance passenger train route that runs between the American South and West, offering overnight service with Superliner bi-level cars.
  • E. CapeFlyer (seasonal passenger train)
    CapeFlyer is a seasonal passenger rail service that connects Boston to Cape Cod, providing convenient summer weekend transportation for tourists and commuters.
  • F. None of above. chosen

How the object was described

The object's one-sentence description was generated by prompting gpt-5.1 with the object name and this triple as context.

Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Coastal Classic Train
Triple: [Coastal Classic, marketingDesignation, Coastal Classic Train]
Generated description
The Coastal Classic Train is a scenic passenger rail service in Alaska known for its dramatic views of mountains, glaciers, and coastline between Anchorage and Seward.

Provenance (5 batches)

Stage Batch ID Job type Status
creating batch_69d6aafa51148190ab84940694c00235 elicitation completed
NER batch_69d8a25e90c08190b7fb73939a2be3d7 ner completed
NED1 batch_69ee87d006e881908e008ffa17502d47 ned_source_triple completed
NED2 batch_69eecd715b448190b738479b7c1379a2 ned_description completed
NEDg batch_69eeb31438f88190bab71212293f2d2e nedg completed
Created at: April 8, 2026, 9:39 p.m.