Triple

T14609885
Position Surface form Disambiguated ID Type / Status
Subject Niagara Falls station (US) E342928 entity
Predicate servesRailwayService P782 FINISHED
Object Amtrak Maple Leaf E68441 NE FINISHED

How this triple was built (3 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
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: Amtrak Maple Leaf | Statement: [Niagara Falls station (US), servesRailwayService, Amtrak Maple Leaf]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Amtrak Maple Leaf
Context triple: [Niagara Falls station (US), servesRailwayService, Amtrak Maple Leaf]
  • A. Amtrak Maple Leaf chosen
    Amtrak Maple Leaf is an intercity passenger train service operated by Amtrak between New York City and Toronto, Canada, running along the Hudson River and through upstate New York into Ontario.
  • B. Amtrak Adirondack
    Amtrak Adirondack is a long-distance passenger train service operated by Amtrak between New York City and Montreal, known for its scenic route along the Hudson River and through the Adirondack Mountains.
  • C. Amtrak Ethan Allen Express
    The Amtrak Ethan Allen Express is an intercity passenger train service that operates between New York City and Vermont, providing a key rail connection through the Hudson Valley and upstate New York.
  • D. Amtrak Montrealer
    The Amtrak Montrealer was a former overnight passenger train that operated between Washington, D.C., and Montreal, providing cross-border service through New England before its discontinuation and replacement by the Vermonter.
  • E. Amtrak Hell Gate Line
    The Amtrak Hell Gate Line is a major electrified rail corridor in New York City that carries intercity and commuter trains between Queens, the Bronx, and Manhattan via the Hell Gate Bridge.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: servesRailwayService
Context triple: [Niagara Falls station (US), servesRailwayService, Amtrak Maple Leaf]
  • A. railwayTypeServed
    Indicates the type of railway system or service that a given entity (such as a station, line, or facility) is designed to serve or accommodate.
  • B. isRailServiceOf
    Indicates that a particular rail service operates for, belongs to, or is provided by a specified entity (such as a route, operator, or network).
  • C. servedByRailroad chosen
    Indicates that a location or facility is provided with transportation or service by a railroad line or company.
  • D. railServiceType
    Indicates the specific category or type of rail service that applies to the relationship between the involved entities (e.g., local, express, freight).
  • E. servesRailCorridor
    Indicates that something (such as a service, facility, or operation) provides service to or operates along a specific rail corridor.
  • F. None of above.

Provenance (4 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69d822dec68081908c2553145c4051dc completed April 9, 2026, 10:06 p.m.
NER Named-entity recognition batch_69deb44f0dd48190a78662b5998a6722 completed April 14, 2026, 9:40 p.m.
NED1 Entity disambiguation (via context triple) batch_69fda91d05e48190ac945e381d6d5dd9 completed May 8, 2026, 9:13 a.m.
PD Predicate disambiguation batch_69de656f9f4c81909f815b6629a9ee39 completed April 14, 2026, 4:03 p.m.
Created at: April 10, 2026, 1:25 a.m.