Triple
T12882612
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | London and Birmingham Railway |
E308133
|
entity |
| Predicate | notableStructure |
P1544
|
FINISHED |
| Object |
Primrose Hill Tunnel
Primrose Hill Tunnel is a historic railway tunnel in London that formed part of the early main line route of the London and Birmingham Railway.
|
E1010427
|
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: Primrose Hill Tunnel | Statement: [London and Birmingham Railway, notableStructure, Primrose Hill Tunnel]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Primrose Hill Tunnel Context triple: [London and Birmingham Railway, notableStructure, Primrose Hill Tunnel]
-
A.
Rotherhithe Tunnel
Rotherhithe Tunnel is a road tunnel beneath the River Thames in London, linking the areas of Rotherhithe and Limehouse.
-
B.
Litton Tunnel
Litton Tunnel is a former railway tunnel in Derbyshire, England, now incorporated into the popular Monsal Trail walking and cycling route through the Peak District.
-
C.
Ellesmere Tunnel
Ellesmere Tunnel is a historic canal tunnel in Shropshire, England, built in the late 18th century as part of the Ellesmere Canal to carry boat traffic beneath rising ground.
-
D.
North Downs Tunnel
North Downs Tunnel is a major railway tunnel in southeast England that carries High Speed 1 beneath the North Downs hills.
-
E.
Kingsway Tunnel
The Kingsway Tunnel is a major road tunnel under the River Mersey in northwest England, carrying vehicular traffic between Liverpool and the Wirral peninsula.
- 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: Primrose Hill Tunnel Triple: [London and Birmingham Railway, notableStructure, Primrose Hill Tunnel]
Generated description
Primrose Hill Tunnel is a historic railway tunnel in London that formed part of the early main line route of the London and Birmingham Railway.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Primrose Hill Tunnel Target entity description: Primrose Hill Tunnel is a historic railway tunnel in London that formed part of the early main line route of the London and Birmingham Railway.
-
A.
Rotherhithe Tunnel
Rotherhithe Tunnel is a road tunnel beneath the River Thames in London, linking the areas of Rotherhithe and Limehouse.
-
B.
Litton Tunnel
Litton Tunnel is a former railway tunnel in Derbyshire, England, now incorporated into the popular Monsal Trail walking and cycling route through the Peak District.
-
C.
Ellesmere Tunnel
Ellesmere Tunnel is a historic canal tunnel in Shropshire, England, built in the late 18th century as part of the Ellesmere Canal to carry boat traffic beneath rising ground.
-
D.
North Downs Tunnel
North Downs Tunnel is a major railway tunnel in southeast England that carries High Speed 1 beneath the North Downs hills.
-
E.
Kingsway Tunnel
The Kingsway Tunnel is a major road tunnel under the River Mersey in northwest England, carrying vehicular traffic between Liverpool and the Wirral peninsula.
- 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_69d7bdf69bc48190af6c2621f28ca351 |
completed | April 9, 2026, 2:55 p.m. |
| NER | Named-entity recognition | batch_69d970fd15888190baf90fc30f2a3e25 |
completed | April 10, 2026, 9:51 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f6af55623081909fd171129f439302 |
completed | May 3, 2026, 2:13 a.m. |
| NEDg | Description generation | batch_69f6b02e3b9881909387c1f70176a1bd |
completed | May 3, 2026, 2:17 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69f6b11ced30819090f67a0b1e1369aa |
completed | May 3, 2026, 2:21 a.m. |
Created at: April 9, 2026, 5:39 p.m.