Triple
T6522840
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Waterloo–Reading line |
E151226
|
entity |
| Predicate | primaryRollingStock |
P1305
|
FINISHED |
| Object |
British Rail Class 707
The British Rail Class 707 is a fleet of modern electric multiple-unit commuter trains built by Siemens for high-frequency suburban services in the South East of England.
|
E664586
|
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 707 | Statement: [Waterloo–Reading line, primaryRollingStock, British Rail Class 707]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: British Rail Class 707 Context triple: [Waterloo–Reading line, primaryRollingStock, British Rail Class 707]
-
A.
British Rail Class 720
The British Rail Class 720 is a modern electric multiple unit train built for high-capacity commuter and regional services on the UK rail network.
-
B.
British Rail Class 745
The British Rail Class 745 is a modern electric multiple unit train built for Greater Anglia, designed for high-capacity, intercity and airport services on the UK rail network.
-
C.
British Rail Class 379
The British Rail Class 379 is a fleet of electric multiple-unit passenger trains built for high-frequency commuter and airport services on the UK rail network.
-
D.
British Rail Class 171
The British Rail Class 171 is a diesel multiple unit train used primarily by Southern in the UK, closely related to the Class 170 but equipped with different coupling systems for compatibility with other Southern stock.
-
E.
British Rail Class 377
The British Rail Class 377 is a fleet of electric multiple-unit commuter trains widely used in southeast England, particularly by Govia Thameslink Railway services.
- 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 707 Triple: [Waterloo–Reading line, primaryRollingStock, British Rail Class 707]
Generated description
The British Rail Class 707 is a fleet of modern electric multiple-unit commuter trains built by Siemens for high-frequency suburban services in the South East of England.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: British Rail Class 707 Target entity description: The British Rail Class 707 is a fleet of modern electric multiple-unit commuter trains built by Siemens for high-frequency suburban services in the South East of England.
-
A.
British Rail Class 720
The British Rail Class 720 is a modern electric multiple unit train built for high-capacity commuter and regional services on the UK rail network.
-
B.
British Rail Class 745
The British Rail Class 745 is a modern electric multiple unit train built for Greater Anglia, designed for high-capacity, intercity and airport services on the UK rail network.
-
C.
British Rail Class 379
The British Rail Class 379 is a fleet of electric multiple-unit passenger trains built for high-frequency commuter and airport services on the UK rail network.
-
D.
British Rail Class 171
The British Rail Class 171 is a diesel multiple unit train used primarily by Southern in the UK, closely related to the Class 170 but equipped with different coupling systems for compatibility with other Southern stock.
-
E.
British Rail Class 377
The British Rail Class 377 is a fleet of electric multiple-unit commuter trains widely used in southeast England, particularly by Govia Thameslink Railway services.
- 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_69c687f522748190b3058405553cdabd |
completed | March 27, 2026, 1:36 p.m. |
| NER | Named-entity recognition | batch_69c6ad95c2c88190b800aaaa73f99210 |
completed | March 27, 2026, 4:17 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c8274d1994819089af156d634547ee |
completed | March 28, 2026, 7:09 p.m. |
| NEDg | Description generation | batch_69c82833f394819092f24dbb35d9b25b |
completed | March 28, 2026, 7:12 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69c82900c41481909f886fc565c57420 |
completed | March 28, 2026, 7:16 p.m. |
Created at: March 27, 2026, 1:45 p.m.