Triple
T1746645
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | London and North Eastern Railway |
E38349
|
entity |
| Predicate | notableLocomotiveClass |
P1305
|
FINISHED |
| Object |
LNER Class P2
The LNER Class P2 was a powerful class of 2-8-2 steam locomotives designed by Sir Nigel Gresley for hauling heavy express trains on the challenging Edinburgh–Aberdeen route in the 1930s.
|
E211420
|
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: LNER Class P2 | Statement: [London and North Eastern Railway, notableLocomotiveClass, LNER Class P2]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: LNER Class P2 Context triple: [London and North Eastern Railway, notableLocomotiveClass, LNER Class P2]
-
A.
LNER Class V2
The LNER Class V2 was a class of powerful 2-6-2 steam locomotives designed by Sir Nigel Gresley for mixed-traffic duties on the London and North Eastern Railway in the mid-20th century.
-
B.
LMS Jubilee Class
The LMS Jubilee Class was a class of British steam locomotives built in the 1930s for express passenger services on the London, Midland and Scottish Railway.
-
C.
LNER Class A1
The LNER Class A1 was a series of powerful British express passenger steam locomotives designed by Sir Nigel Gresley for high-speed mainline services in the early 20th century.
-
D.
LNER Class A3
The LNER Class A3 was a famous class of British express steam locomotives, including the record-breaking Flying Scotsman, designed by Sir Nigel Gresley for high-speed mainline passenger service.
-
E.
LNER Class A3 4472 Flying Scotsman
LNER Class A3 4472 Flying Scotsman is a famous British steam locomotive renowned for being one of the world’s most iconic express passenger engines and the first to officially reach 100 mph.
- 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: LNER Class P2 Triple: [London and North Eastern Railway, notableLocomotiveClass, LNER Class P2]
Generated description
The LNER Class P2 was a powerful class of 2-8-2 steam locomotives designed by Sir Nigel Gresley for hauling heavy express trains on the challenging Edinburgh–Aberdeen route in the 1930s.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: LNER Class P2 Target entity description: The LNER Class P2 was a powerful class of 2-8-2 steam locomotives designed by Sir Nigel Gresley for hauling heavy express trains on the challenging Edinburgh–Aberdeen route in the 1930s.
-
A.
LNER Class V2
The LNER Class V2 was a class of powerful 2-6-2 steam locomotives designed by Sir Nigel Gresley for mixed-traffic duties on the London and North Eastern Railway in the mid-20th century.
-
B.
LMS Jubilee Class
The LMS Jubilee Class was a class of British steam locomotives built in the 1930s for express passenger services on the London, Midland and Scottish Railway.
-
C.
LNER Class A1
The LNER Class A1 was a series of powerful British express passenger steam locomotives designed by Sir Nigel Gresley for high-speed mainline services in the early 20th century.
-
D.
LNER Class A3
The LNER Class A3 was a famous class of British express steam locomotives, including the record-breaking Flying Scotsman, designed by Sir Nigel Gresley for high-speed mainline passenger service.
-
E.
LNER Class A3 4472 Flying Scotsman
LNER Class A3 4472 Flying Scotsman is a famous British steam locomotive renowned for being one of the world’s most iconic express passenger engines and the first to officially reach 100 mph.
- 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_69a8862b01a48190ab47209063af82d9 |
completed | March 4, 2026, 7:21 p.m. |
| NER | Named-entity recognition | batch_69aa63eabdf48190878ecde3d1b1faf3 |
completed | March 6, 2026, 5:19 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69adeaca5f348190a8c1be9948d960e6 |
completed | March 8, 2026, 9:31 p.m. |
| NEDg | Description generation | batch_69adeb6e8fe08190a4732d42aa15ee8e |
completed | March 8, 2026, 9:34 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69adebea03a08190bd055e3e6460b5f4 |
completed | March 8, 2026, 9:36 p.m. |
Created at: March 4, 2026, 7:31 p.m.