Triple
T3187898
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | St. Clair River |
E66745
|
entity |
| Predicate | crossedBy |
P416
|
FINISHED |
| Object |
St. Clair Tunnel (rail, nearby under river)
The St. Clair Tunnel is a historic railway tunnel beneath the St. Clair River that provides a vital cross-border rail link between Canada and the United States.
|
E336387
|
NE FINISHED |
How this triple was built (4 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: St. Clair Tunnel (rail, nearby under river) | Statement: [St. Clair River, crossedBy, St. Clair Tunnel (rail, nearby under river)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: St. Clair Tunnel (rail, nearby under river) Context triple: [St. Clair River, crossedBy, St. Clair Tunnel (rail, nearby under river)]
-
A.
Clyde Tunnel
The Clyde Tunnel is a road tunnel in Glasgow, Scotland, carrying vehicular traffic beneath the River Clyde to connect the city’s north and south banks.
-
B.
Brockville Railway Tunnel
The Brockville Railway Tunnel is Canada's oldest railway tunnel, a historic 19th-century stone passage beneath downtown Brockville that now serves as a popular illuminated pedestrian attraction.
-
C.
Coen Tunnel (via connected waterways)
The Coen Tunnel is a major road tunnel in Amsterdam that facilitates traffic flow beneath the waterways connecting the IJ Bay with the city’s western districts.
-
D.
Detroit–Windsor Tunnel
The Detroit–Windsor Tunnel is an underwater vehicular tunnel beneath the Detroit River that connects the cities of Detroit, Michigan, and Windsor, Ontario, serving as a major international border crossing between the United States and Canada.
-
E.
George Massey Tunnel
The George Massey Tunnel is a highway traffic tunnel in British Columbia, Canada, that carries vehicles beneath the Fraser River between Richmond and Delta.
- 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: St. Clair Tunnel (rail, nearby under river) Triple: [St. Clair River, crossedBy, St. Clair Tunnel (rail, nearby under river)]
Generated description
The St. Clair Tunnel is a historic railway tunnel beneath the St. Clair River that provides a vital cross-border rail link between Canada and the United States.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: St. Clair Tunnel (rail, nearby under river) Target entity description: The St. Clair Tunnel is a historic railway tunnel beneath the St. Clair River that provides a vital cross-border rail link between Canada and the United States.
-
A.
Clyde Tunnel
The Clyde Tunnel is a road tunnel in Glasgow, Scotland, carrying vehicular traffic beneath the River Clyde to connect the city’s north and south banks.
-
B.
Brockville Railway Tunnel
The Brockville Railway Tunnel is Canada's oldest railway tunnel, a historic 19th-century stone passage beneath downtown Brockville that now serves as a popular illuminated pedestrian attraction.
-
C.
Coen Tunnel (via connected waterways)
The Coen Tunnel is a major road tunnel in Amsterdam that facilitates traffic flow beneath the waterways connecting the IJ Bay with the city’s western districts.
-
D.
Detroit–Windsor Tunnel
The Detroit–Windsor Tunnel is an underwater vehicular tunnel beneath the Detroit River that connects the cities of Detroit, Michigan, and Windsor, Ontario, serving as a major international border crossing between the United States and Canada.
-
E.
George Massey Tunnel
The George Massey Tunnel is a highway traffic tunnel in British Columbia, Canada, that carries vehicles beneath the Fraser River between Richmond and Delta.
- F. None of above. chosen
Provenance (5 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_69ad8587c1bc8190a2595f2c22ee1001 |
completed | March 8, 2026, 2:19 p.m. |
| NER | Named-entity recognition | batch_69ada6e279288190843837751e852c9e |
completed | March 8, 2026, 4:42 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b24b8c075881909152ddca48b7da60 |
completed | March 12, 2026, 5:13 a.m. |
| NEDg | Description generation | batch_69b24f86acf081909688c73b15c15383 |
completed | March 12, 2026, 5:30 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69b2501533008190bf178e3d11e2bea8 |
completed | March 12, 2026, 5:33 a.m. |
Created at: March 8, 2026, 3:06 p.m.