Triple
T20407329
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Dollis Brook |
E500502
|
entity |
| Predicate | crossedBy |
P416
|
FINISHED |
| Object | Dollis Brook Viaduct |
—
|
NE NERFINISHED |
How this triple was built (2 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: Dollis Brook Viaduct | Statement: [Dollis Brook, crossedBy, Dollis Brook Viaduct]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Dollis Brook Viaduct Context triple: [Dollis Brook, crossedBy, Dollis Brook Viaduct]
-
A.
Dollis Brook Viaduct
chosen
Dollis Brook Viaduct is a railway viaduct in north London that carries the Northern line over Dollis Brook and is notable as one of the tallest structures on the London Underground network.
-
B.
Holborn Viaduct
Holborn Viaduct is a 19th-century iron and stone road bridge in central London that carries traffic over the valley of the River Fleet between Holborn and the City.
-
C.
Mill Hill Broadway viaduct
Mill Hill Broadway viaduct is a railway bridge structure in the Mill Hill Broadway area of north London, carrying tracks over the surrounding roads and urban landscape.
-
D.
Epping Road bridge
The Epping Road bridge is a major road bridge in Sydney, Australia, carrying Epping Road across the Lane Cove River as part of a key arterial route on the city’s North Shore.
-
E.
Welwyn Viaduct
Welwyn Viaduct is a prominent 19th-century railway viaduct in Hertfordshire, England, known for its multiple brick arches carrying the East Coast Main Line across the River Mimram valley.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
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_69e0b4a81bec8190b69adfdc1336a015 |
completed | April 16, 2026, 10:06 a.m. |
| NER | Named-entity recognition | batch_69e67993dc7081908ebd54ec92e712ea |
completed | April 20, 2026, 7:08 p.m. |
Created at: April 16, 2026, 11:29 a.m.