Triple

T6158467
Position Surface form Disambiguated ID Type / Status
Subject Amtrak Vermonter E137381 entity
Predicate previousService P3388 FINISHED
Object Montrealer
The Montrealer was a former Amtrak overnight passenger train that operated between Washington, D.C., and Montreal, Quebec, providing cross-border service until it was discontinued and later replaced by the Vermonter.
E573455 NE FINISHED

How this triple was built (5 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: Montrealer | Statement: [Amtrak Vermonter, previousService, Montrealer]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Montrealer
Context triple: [Amtrak Vermonter, previousService, Montrealer]
  • A. Montreal
    Montreal is the largest city in Quebec, Canada, known for its vibrant bilingual culture, historic architecture, and status as a major economic and cultural center.
  • B. Montreal, Quebec, Canada
    Montreal, Quebec, Canada is a major French-speaking metropolis known for its vibrant arts scene, diverse culture, and historic architecture on the Saint Lawrence River.
  • C. Montreal region
    The Montreal region is a metropolitan area in southwestern Quebec centered on the island city of Montreal, known for its dense urban development, diverse population, and major economic and cultural influence in Canada.
  • D. Quebec City
    Quebec City is the historic capital of the Canadian province of Quebec, renowned for its well-preserved fortified old town and rich French colonial heritage.
  • E. Joliette
    Joliette is a Montreal Metro station on the Green Line serving the Mercier–Hochelaga-Maisonneuve borough in Montreal, Quebec, Canada.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
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: Montrealer
Triple: [Amtrak Vermonter, previousService, Montrealer]
Generated description
The Montrealer was a former Amtrak overnight passenger train that operated between Washington, D.C., and Montreal, Quebec, providing cross-border service until it was discontinued and later replaced by the Vermonter.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Montrealer
Target entity description: The Montrealer was a former Amtrak overnight passenger train that operated between Washington, D.C., and Montreal, Quebec, providing cross-border service until it was discontinued and later replaced by the Vermonter.
  • A. Montreal
    Montreal is the largest city in Quebec, Canada, known for its vibrant bilingual culture, historic architecture, and status as a major economic and cultural center.
  • B. Montreal, Quebec, Canada
    Montreal, Quebec, Canada is a major French-speaking metropolis known for its vibrant arts scene, diverse culture, and historic architecture on the Saint Lawrence River.
  • C. Montreal region
    The Montreal region is a metropolitan area in southwestern Quebec centered on the island city of Montreal, known for its dense urban development, diverse population, and major economic and cultural influence in Canada.
  • D. Quebec City
    Quebec City is the historic capital of the Canadian province of Quebec, renowned for its well-preserved fortified old town and rich French colonial heritage.
  • E. Joliette
    Joliette is a Montreal Metro station on the Green Line serving the Mercier–Hochelaga-Maisonneuve borough in Montreal, Quebec, Canada.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: previousService
Context triple: [Amtrak Vermonter, previousService, Montrealer]
  • A. hasFormerService chosen
    Indicates that an entity previously provided a service to another entity but no longer does so.
  • B. primaryService
    Indicates that one entity serves as the main or principal service provided or used in relation to another entity.
  • C. predecessorService
    Indicates that one service must be completed or occur before another service can begin or be considered.
  • D. previousMode
    Indicates that one mode directly precedes another in a sequence or state transition.
  • E. previousRepository
    Indicates that one repository directly precedes another in a version, history, or sequence of repositories.
  • F. None of above.

Provenance (6 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_69c008a54fc88190b6ce4416490ca79d completed March 22, 2026, 3:20 p.m.
NER Named-entity recognition batch_69c05d32ef548190bc215d052d3497fe completed March 22, 2026, 9:20 p.m.
NED1 Entity disambiguation (via context triple) batch_69c1419064a48190880005459c86322c completed March 23, 2026, 1:35 p.m.
NEDg Description generation batch_69c145afb0d48190b23248f2a7d511de completed March 23, 2026, 1:52 p.m.
NED2 Entity disambiguation (via description) batch_69c146374a108190a0e1909afafd40b6 completed March 23, 2026, 1:55 p.m.
PD Predicate disambiguation batch_69c055f5b81481908819515cdc334ae6 completed March 22, 2026, 8:49 p.m.
Created at: March 22, 2026, 4:17 p.m.