Triple
T16470779
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | 5MT |
E400052
|
entity |
| Predicate | classificationSystem |
P6736
|
FINISHED |
| Object |
British Railways steam locomotive power classification system
The British Railways steam locomotive power classification system was a standardized scheme used by British Railways to categorize steam locomotives by their power and intended service type, aiding in consistent allocation and operation across the network.
|
E1215495
|
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: British Railways steam locomotive power classification system | Statement: [5MT, classificationSystem, British Railways steam locomotive power classification system]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: British Railways steam locomotive power classification system Context triple: [5MT, classificationSystem, British Railways steam locomotive power classification system]
-
A.
British Rail steam locomotives
British Rail steam locomotives were the steam-powered engines operated on Britain’s nationalized railway system in the mid-20th century, spanning a wide range of classes used for passenger and freight services before diesel and electric traction took over.
-
B.
LMS Stanier Class 5 4-6-0 "Black Five" locomotives
The LMS Stanier Class 5 4-6-0 "Black Five" locomotives are a highly successful and versatile class of British mixed-traffic steam engines designed by William Stanier for the London, Midland and Scottish Railway in the 1930s.
-
C.
BR Standard Class 4 steam locomotives
BR Standard Class 4 steam locomotives are mid-20th-century British Railways mixed-traffic steam engines designed for versatility and efficiency on both passenger and freight services.
-
D.
Swiss locomotive classification
Swiss locomotive classification is a system used in Switzerland to designate and categorize locomotives and multiple units based on their type, power, and axle arrangement.
-
E.
British Rail Class 56
The British Rail Class 56 is a heavy freight diesel-electric locomotive introduced in the 1970s for high-power haulage duties on the UK rail network.
- 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: British Railways steam locomotive power classification system Triple: [5MT, classificationSystem, British Railways steam locomotive power classification system]
Generated description
The British Railways steam locomotive power classification system was a standardized scheme used by British Railways to categorize steam locomotives by their power and intended service type, aiding in consistent allocation and operation across the network.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: British Railways steam locomotive power classification system Target entity description: The British Railways steam locomotive power classification system was a standardized scheme used by British Railways to categorize steam locomotives by their power and intended service type, aiding in consistent allocation and operation across the network.
-
A.
British Rail steam locomotives
British Rail steam locomotives were the steam-powered engines operated on Britain’s nationalized railway system in the mid-20th century, spanning a wide range of classes used for passenger and freight services before diesel and electric traction took over.
-
B.
LMS Stanier Class 5 4-6-0 "Black Five" locomotives
The LMS Stanier Class 5 4-6-0 "Black Five" locomotives are a highly successful and versatile class of British mixed-traffic steam engines designed by William Stanier for the London, Midland and Scottish Railway in the 1930s.
-
C.
BR Standard Class 4 steam locomotives
BR Standard Class 4 steam locomotives are mid-20th-century British Railways mixed-traffic steam engines designed for versatility and efficiency on both passenger and freight services.
-
D.
Swiss locomotive classification
Swiss locomotive classification is a system used in Switzerland to designate and categorize locomotives and multiple units based on their type, power, and axle arrangement.
-
E.
British Rail Class 56
The British Rail Class 56 is a heavy freight diesel-electric locomotive introduced in the 1970s for high-power haulage duties on the UK rail network.
- 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_69d87f2dac988190b74d6e185fa88ba4 |
completed | April 10, 2026, 4:40 a.m. |
| NER | Named-entity recognition | batch_69e32dd0d2fc81909b68b5afb00f192f |
completed | April 18, 2026, 7:08 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a004f5af4308190bd023624de35027f |
completed | May 10, 2026, 9:26 a.m. |
| NEDg | Description generation | batch_6a0050c5d4548190a674c1c19f08a9fd |
completed | May 10, 2026, 9:32 a.m. |
| NED2 | Entity disambiguation (via description) | batch_6a0051a7ae208190b33d42cc8d4bb21f |
completed | May 10, 2026, 9:36 a.m. |
Created at: April 10, 2026, 5:11 a.m.