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.