Triple
T1110115
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Hastings line |
E25574
|
entity |
| Predicate | usesRollingStock |
P5426
|
FINISHED |
| Object |
British Rail Class 375
The British Rail Class 375 is a fleet of electric multiple-unit passenger trains operated by Southeastern on suburban and regional services in southeast England.
|
E141151
|
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 Rail Class 375 | Statement: [Hastings line, usesRollingStock, British Rail Class 375]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: British Rail Class 375 Context triple: [Hastings line, usesRollingStock, British Rail Class 375]
-
A.
Class 390 Pendolino
The Class 390 Pendolino is a high-speed tilting electric multiple unit train used by Avanti West Coast on the West Coast Main Line in the United Kingdom.
-
B.
British Rail Class 47
The British Rail Class 47 is a widely used diesel-electric locomotive class introduced in the 1960s, notable for its extensive service across the UK rail network with both passenger and freight trains.
-
C.
Class 379 Electrostar
The Class 379 Electrostar is a British electric multiple-unit train type built by Bombardier for high-frequency commuter and airport services, known for its modern design and passenger comfort.
-
D.
Class 730 Aventra
The Class 730 Aventra is a modern electric multiple unit train built by Alstom (originally Bombardier) for high-capacity, commuter and regional rail services on the UK network.
-
E.
Class 360 Desiro
The Class 360 Desiro is a type of electric multiple unit passenger train used on regional and commuter services in 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 Rail Class 375 Triple: [Hastings line, usesRollingStock, British Rail Class 375]
Generated description
The British Rail Class 375 is a fleet of electric multiple-unit passenger trains operated by Southeastern on suburban and regional services in southeast England.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: British Rail Class 375 Target entity description: The British Rail Class 375 is a fleet of electric multiple-unit passenger trains operated by Southeastern on suburban and regional services in southeast England.
-
A.
Class 390 Pendolino
The Class 390 Pendolino is a high-speed tilting electric multiple unit train used by Avanti West Coast on the West Coast Main Line in the United Kingdom.
-
B.
British Rail Class 47
The British Rail Class 47 is a widely used diesel-electric locomotive class introduced in the 1960s, notable for its extensive service across the UK rail network with both passenger and freight trains.
-
C.
Class 379 Electrostar
The Class 379 Electrostar is a British electric multiple-unit train type built by Bombardier for high-frequency commuter and airport services, known for its modern design and passenger comfort.
-
D.
Class 730 Aventra
The Class 730 Aventra is a modern electric multiple unit train built by Alstom (originally Bombardier) for high-capacity, commuter and regional rail services on the UK network.
-
E.
Class 360 Desiro
The Class 360 Desiro is a type of electric multiple unit passenger train used on regional and commuter services in 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_69a49428d4448190b3b36991ceae87ce |
completed | March 1, 2026, 7:31 p.m. |
| NER | Named-entity recognition | batch_69a4bb75eec08190b1d6545e96816d34 |
completed | March 1, 2026, 10:19 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ac8a010c10819081994835ae7a809a |
completed | March 7, 2026, 8:26 p.m. |
| NEDg | Description generation | batch_69ac8a8a9b208190aed3bcc4697415d1 |
completed | March 7, 2026, 8:28 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69ac8b17ae048190b32e89d2f2a60ba3 |
completed | March 7, 2026, 8:31 p.m. |
Created at: March 1, 2026, 7:43 p.m.