Triple
T6036608
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tay Rail Bridge |
E134436
|
entity |
| Predicate | precededBy |
P97
|
FINISHED |
| Object | Tay Bridge disaster |
E90093
|
NE FINISHED |
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: Tay Bridge disaster | Statement: [Tay Rail Bridge, precededBy, Tay Bridge disaster]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tay Bridge disaster Context triple: [Tay Rail Bridge, precededBy, Tay Bridge disaster]
-
A.
Tay Bridge disaster
chosen
The Tay Bridge disaster was a catastrophic 1879 railway bridge collapse in Scotland during a violent storm, killing dozens of passengers and prompting major changes in bridge engineering and safety standards.
-
B.
Great Locomotive Chase
The Great Locomotive Chase was a daring Civil War raid in 1862 in which Union soldiers stole a Confederate train in Georgia in an attempt to disrupt vital rail lines and supply routes.
-
C.
Hatfield rail crash
The Hatfield rail crash was a fatal 2000 train derailment in Hertfordshire, England, that exposed serious track maintenance failures and triggered major reforms in the UK rail industry.
-
D.
Tay Rail Bridge
The Tay Rail Bridge is a historic railway bridge in Scotland that carries trains across the Firth of Tay between Dundee and the county of Fife.
-
E.
Ladbroke Grove rail crash
The Ladbroke Grove rail crash was a major 1999 train collision near Paddington Station in London that resulted in 31 deaths, over 500 injuries, and significant scrutiny of UK rail safety and signaling practices.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69c00875db5c819099dd5bb833ec43c2 |
completed | March 22, 2026, 3:19 p.m. |
| NER | Named-entity recognition | batch_69c056cb06508190a90beb4d9d083835 |
completed | March 22, 2026, 8:53 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c1138cb2388190a80562a835388dc3 |
completed | March 23, 2026, 10:18 a.m. |
Created at: March 22, 2026, 4:08 p.m.