Triple
T18681323
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Caldecott Tunnel |
E456739
|
entity |
| Predicate | originalName |
P65
|
FINISHED |
| Object | Broadway Low Level Tunnel |
—
|
NE NERFINISHED |
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: Broadway Low Level Tunnel | Statement: [Caldecott Tunnel, originalName, Broadway Low Level Tunnel]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Broadway Low Level Tunnel Context triple: [Caldecott Tunnel, originalName, Broadway Low Level Tunnel]
-
A.
Box Tunnel
Box Tunnel is a historic railway tunnel in Wiltshire, England, engineered by Isambard Kingdom Brunel as part of the Great Western Railway and renowned for its ambitious 19th-century design and construction.
-
B.
Tar Tunnel
Tar Tunnel is a historic 18th-century industrial tunnel in Ironbridge Gorge, England, known for its natural bitumen seepage and role in the early Industrial Revolution.
-
C.
Downtown Tunnel
The Downtown Tunnel is a major underwater vehicular tunnel in the Hampton Roads region that carries traffic beneath the Elizabeth River between Norfolk and Portsmouth, Virginia.
-
D.
Othello Tunnels
Othello Tunnels is a historic series of railway tunnels and bridges carved through a dramatic canyon in British Columbia, Canada, now popular as a scenic walking trail.
-
E.
Opera Tunnel
Opera Tunnel is a major road tunnel in Oslo, Norway, forming a key part of the city’s waterfront traffic system beneath the Bjørvika district.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Broadway Low Level Tunnel Target entity description: Broadway Low Level Tunnel is a vehicular tunnel in the Berkeley Hills of the San Francisco Bay Area that was later expanded and renamed the Caldecott Tunnel.
-
A.
Box Tunnel
Box Tunnel is a historic railway tunnel in Wiltshire, England, engineered by Isambard Kingdom Brunel as part of the Great Western Railway and renowned for its ambitious 19th-century design and construction.
-
B.
Tar Tunnel
Tar Tunnel is a historic 18th-century industrial tunnel in Ironbridge Gorge, England, known for its natural bitumen seepage and role in the early Industrial Revolution.
-
C.
Downtown Tunnel
The Downtown Tunnel is a major underwater vehicular tunnel in the Hampton Roads region that carries traffic beneath the Elizabeth River between Norfolk and Portsmouth, Virginia.
-
D.
Othello Tunnels
Othello Tunnels is a historic series of railway tunnels and bridges carved through a dramatic canyon in British Columbia, Canada, now popular as a scenic walking trail.
-
E.
Opera Tunnel
Opera Tunnel is a major road tunnel in Oslo, Norway, forming a key part of the city’s waterfront traffic system beneath the Bjørvika district.
- F. None of above. chosen
Provenance (2 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_69d8d391eb488190ac2e9abf5bf255e4 |
completed | April 10, 2026, 10:40 a.m. |
| NER | Named-entity recognition | batch_69e55b2840548190ababe1cc603b4784 |
completed | April 19, 2026, 10:46 p.m. |
Created at: April 10, 2026, 11:49 a.m.