Triple
T3859249
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tay Bridge disaster |
E90093
|
entity |
| Predicate | engineerOfCollapsedBridge |
P52394
|
FINISHED |
| Object |
Thomas Bouch
Thomas Bouch was a 19th-century British railway engineer best known for designing the ill-fated first Tay Bridge, whose catastrophic collapse in 1879 ruined his reputation.
|
E392215
|
NE FINISHED |
How this triple was built (5 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: Thomas Bouch | Statement: [Tay Bridge disaster, engineerOfCollapsedBridge, Thomas Bouch]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Thomas Bouch Context triple: [Tay Bridge disaster, engineerOfCollapsedBridge, Thomas Bouch]
-
A.
Thomas Telford
Thomas Telford was a pioneering 18th–19th century Scottish civil engineer renowned for his innovative bridges, canals, and roads across Britain.
-
B.
Robert Stephenson
Robert Stephenson was a pioneering 19th-century English railway and civil engineer renowned for his work on early steam locomotives and major railway bridges.
-
C.
Isambard Kingdom Brunel
Isambard Kingdom Brunel was a pioneering 19th-century British engineer renowned for his groundbreaking work on railways, bridges, tunnels, and steamships that transformed industrial transportation.
-
D.
John Rennie the Younger
John Rennie the Younger was a 19th-century British civil engineer noted for completing major projects such as London Bridge and continuing the work of his father, John Rennie the Elder.
-
E.
John Rennie the Elder
John Rennie the Elder was a prominent Scottish civil engineer of the late 18th and early 19th centuries, renowned for his innovative work on canals, bridges, and docks across Britain.
- 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: Thomas Bouch Triple: [Tay Bridge disaster, engineerOfCollapsedBridge, Thomas Bouch]
Generated description
Thomas Bouch was a 19th-century British railway engineer best known for designing the ill-fated first Tay Bridge, whose catastrophic collapse in 1879 ruined his reputation.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Thomas Bouch Target entity description: Thomas Bouch was a 19th-century British railway engineer best known for designing the ill-fated first Tay Bridge, whose catastrophic collapse in 1879 ruined his reputation.
-
A.
Thomas Telford
Thomas Telford was a pioneering 18th–19th century Scottish civil engineer renowned for his innovative bridges, canals, and roads across Britain.
-
B.
Robert Stephenson
Robert Stephenson was a pioneering 19th-century English railway and civil engineer renowned for his work on early steam locomotives and major railway bridges.
-
C.
Isambard Kingdom Brunel
Isambard Kingdom Brunel was a pioneering 19th-century British engineer renowned for his groundbreaking work on railways, bridges, tunnels, and steamships that transformed industrial transportation.
-
D.
John Rennie the Younger
John Rennie the Younger was a 19th-century British civil engineer noted for completing major projects such as London Bridge and continuing the work of his father, John Rennie the Elder.
-
E.
John Rennie the Elder
John Rennie the Elder was a prominent Scottish civil engineer of the late 18th and early 19th centuries, renowned for his innovative work on canals, bridges, and docks across Britain.
- F. None of above. chosen
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: engineerOfCollapsedBridge Context triple: [Tay Bridge disaster, engineerOfCollapsedBridge, Thomas Bouch]
-
A.
riverCrossingStructure
Indicates a structure that allows passage across a river, such as by spanning or traversing it.
-
B.
originalBridgeOpened
Indicates that the first or initial version of a bridge was opened for use or put into operation.
-
C.
bridgeType
Indicates the specific kind or classification of a bridge associated with an entity.
-
D.
isOldestSurvivingBridgeAcross
Indicates that a bridge is the most ancient still-existing bridge that spans a specified waterway, road, or gap.
-
E.
rebuiltAsLiftBridge
Indicates that an existing structure was reconstructed or converted into a lift bridge.
- F. None of above. chosen
Provenance (7 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_69aed95b3c088190a8f85d19e6070599 |
completed | March 9, 2026, 2:29 p.m. |
| NER | Named-entity recognition | batch_69aeec1ff39c8190b83a88abd840a0e3 |
completed | March 9, 2026, 3:49 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b50424b23c8190b888cfb79e26e758 |
completed | March 14, 2026, 6:45 a.m. |
| NEDg | Description generation | batch_69b504ff7624819089f98794ec97ed8f |
completed | March 14, 2026, 6:49 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69b50594e4888190b2db45eee2a988a7 |
completed | March 14, 2026, 6:52 a.m. |
| PD | Predicate disambiguation | batch_69aee752c8a48190a670f73ed0bf1e61 |
completed | March 9, 2026, 3:29 p.m. |
| PDg | Predicate description generation | batch_69aeeb828fb08190901d51edbe8bd304 |
completed | March 9, 2026, 3:47 p.m. |
Created at: March 9, 2026, 3:19 p.m.