Triple
T23216733
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | British Rail Class 91 |
E580764
|
entity |
| Predicate | nickName |
P2937
|
FINISHED |
| Object | InterCity 225 locomotive |
—
|
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: InterCity 225 locomotive | Statement: [British Rail Class 91, nickName, InterCity 225 locomotive]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: InterCity 225 locomotive Context triple: [British Rail Class 91, nickName, InterCity 225 locomotive]
-
A.
EMD F59PH locomotive
The EMD F59PH locomotive is a four-axle diesel-electric passenger locomotive built by Electro-Motive Division in the late 1980s and 1990s, widely used by North American commuter rail agencies.
-
B.
CP Class 2600 electric locomotive
The CP Class 2600 is a series of Portuguese electric locomotives used primarily for mainline passenger services on the national rail network.
-
C.
Siemens Charger locomotive
The Siemens Charger locomotive is a modern, high-speed, diesel-electric passenger locomotive widely used by North American rail operators for efficient and environmentally friendlier corridor services.
-
D.
BR Class 47 diesel-electric locomotives
The BR Class 47 diesel-electric locomotives are a large and versatile class of British mainline diesel engines introduced in the 1960s, widely used across the UK rail network for both passenger and freight services.
-
E.
Class 57 diesel locomotive
The Class 57 diesel locomotive is a British mainline locomotive type, rebuilt from older Class 47s, widely used for both passenger and freight services including prestigious sleeper and charter trains.
- 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: InterCity 225 locomotive Target entity description: The InterCity 225 locomotive is a high-speed electric train used on Britain’s East Coast Main Line, known for its 140 mph capability and service on flagship intercity routes.
-
A.
EMD F59PH locomotive
The EMD F59PH locomotive is a four-axle diesel-electric passenger locomotive built by Electro-Motive Division in the late 1980s and 1990s, widely used by North American commuter rail agencies.
-
B.
CP Class 2600 electric locomotive
The CP Class 2600 is a series of Portuguese electric locomotives used primarily for mainline passenger services on the national rail network.
-
C.
Siemens Charger locomotive
The Siemens Charger locomotive is a modern, high-speed, diesel-electric passenger locomotive widely used by North American rail operators for efficient and environmentally friendlier corridor services.
-
D.
BR Class 47 diesel-electric locomotives
The BR Class 47 diesel-electric locomotives are a large and versatile class of British mainline diesel engines introduced in the 1960s, widely used across the UK rail network for both passenger and freight services.
-
E.
Class 57 diesel locomotive
The Class 57 diesel locomotive is a British mainline locomotive type, rebuilt from older Class 47s, widely used for both passenger and freight services including prestigious sleeper and charter trains.
- 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_69e2460389408190be74f41d217799a9 |
completed | April 17, 2026, 2:38 p.m. |
| NER | Named-entity recognition | batch_69f19165949c81908e4d66a8a2b0a25a |
completed | April 29, 2026, 5:04 a.m. |
Created at: April 17, 2026, 4:08 p.m.