Triple
T17933931
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | British Rail Class 159 |
E448402
|
entity |
| Predicate | usedOn |
P2367
|
FINISHED |
| Object | Salisbury–Exeter route |
—
|
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: Salisbury–Exeter route | Statement: [British Rail Class 159, usedOn, Salisbury–Exeter route]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Salisbury–Exeter route Context triple: [British Rail Class 159, usedOn, Salisbury–Exeter route]
-
A.
Exeter–Waterloo route
The Exeter–Waterloo route is a mainline railway service in southern England linking Exeter with London Waterloo via towns in Devon, Somerset, Wiltshire, and Hampshire.
-
B.
Cambridge–Brighton route
The Cambridge–Brighton route is a cross-London commuter and regional rail service linking Cambridge in the north with Brighton on the south coast via central London.
-
C.
Exeter–Paignton route
The Exeter–Paignton route is a scenic railway line in Devon, England, running along the coast and serving as a key part of the region’s passenger rail network.
-
D.
Wessex Route
Wessex Route is a major rail operating area in southern England that manages and oversees key passenger and freight railway lines, including routes around Southampton and Portsmouth.
-
E.
Bristol to Exeter Line
The Bristol to Exeter Line is a major railway route in southwest England connecting the cities of Bristol and Exeter and serving as an important corridor for regional and long-distance passenger services.
- 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: Salisbury–Exeter route Target entity description: The Salisbury–Exeter route is a key railway line in southwest England linking Salisbury in Wiltshire with Exeter in Devon, serving towns across the West Country.
-
A.
Exeter–Waterloo route
The Exeter–Waterloo route is a mainline railway service in southern England linking Exeter with London Waterloo via towns in Devon, Somerset, Wiltshire, and Hampshire.
-
B.
Cambridge–Brighton route
The Cambridge–Brighton route is a cross-London commuter and regional rail service linking Cambridge in the north with Brighton on the south coast via central London.
-
C.
Exeter–Paignton route
The Exeter–Paignton route is a scenic railway line in Devon, England, running along the coast and serving as a key part of the region’s passenger rail network.
-
D.
Wessex Route
Wessex Route is a major rail operating area in southern England that manages and oversees key passenger and freight railway lines, including routes around Southampton and Portsmouth.
-
E.
Bristol to Exeter Line
The Bristol to Exeter Line is a major railway route in southwest England connecting the cities of Bristol and Exeter and serving as an important corridor for regional and long-distance passenger services.
- 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_69d8b9f79d14819095540856928f0e25 |
completed | April 10, 2026, 8:51 a.m. |
| NER | Named-entity recognition | batch_69e4a5547b7881909dc41bb7dd34194f |
completed | April 19, 2026, 9:50 a.m. |
Created at: April 10, 2026, 10:21 a.m.