Triple
T3262394
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Amtrak Maple Leaf |
E68441
|
entity |
| Predicate | primaryTerminusCanada |
P39372
|
FINISHED |
| Object | Toronto Union Station |
E12424
|
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: Toronto Union Station | Statement: [Amtrak Maple Leaf, primaryTerminusCanada, Toronto Union Station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Toronto Union Station Context triple: [Amtrak Maple Leaf, primaryTerminusCanada, Toronto Union Station]
-
A.
Union Station, Toronto
chosen
Union Station in Toronto is the city’s primary railway and transit hub, serving as a central gateway for regional, national, and local transportation.
-
B.
Union station (TTC)
Union station (TTC) is a major downtown Toronto subway station and transit hub that connects multiple subway lines with regional rail and other transportation services.
-
C.
Waterloo station
Waterloo station is a major central London railway terminus and Underground hub, known as one of the busiest transport interchanges in the United Kingdom.
-
D.
Brampton GO Station
Brampton GO Station is a commuter rail and bus transit hub in Brampton, Ontario, serving GO Transit and regional passengers on the Kitchener line.
-
E.
Waterloo East station
Waterloo East station is a central London railway station on the South Bank, serving suburban and regional services and linked by footbridge to both Waterloo and Charing Cross stations.
- 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: primaryTerminusCanada Context triple: [Amtrak Maple Leaf, primaryTerminusCanada, Toronto Union Station]
-
A.
terminusCanada
chosen
Indicates that something serves as an endpoint, destination, or terminal location within or specifically for Canada.
-
B.
includesCanadianTerritoryPartially
Indicates that one entity geographically encompasses part, but not all, of the territory of Canada.
-
C.
regionCanadianSide
Indicates that the specified region is located on the Canadian side of a border or boundary.
-
D.
primaryTerminalFor
Indicates that one entity serves as the main or principal terminal associated with another entity.
-
E.
northTerminusType
Indicates the type or nature of the northern endpoint or terminus of a route, line, or similar linear feature.
- 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_69ad8590444081909e8107a8aeef3a23 |
completed | March 8, 2026, 2:20 p.m. |
| NER | Named-entity recognition | batch_69adafa908e881908cbb2ad137819ffb |
completed | March 8, 2026, 5:19 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b28ee2ec8481908a0c0f4a32c97fe0 |
completed | March 12, 2026, 10:01 a.m. |
| PD | Predicate disambiguation | batch_69ada41d7eac8190ada4bf5f793d5c49 |
completed | March 8, 2026, 4:30 p.m. |
Created at: March 8, 2026, 3:09 p.m.