Triple
T6996136
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | British Rail Class 387 |
E162218
|
entity |
| Predicate | subclass |
P1244
|
FINISHED |
| Object |
Class 387/3
Class 387/3 is a subseries of the British Rail Class 387 electric multiple units, built for high-capacity commuter services with modern onboard amenities and performance.
|
E639031
|
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: Class 387/3 | Statement: [British Rail Class 387, subclass, Class 387/3]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Class 387/3 Context triple: [British Rail Class 387, subclass, Class 387/3]
-
A.
Class 387/1
Class 387/1 is a subseries of the British Rail Class 387 electric multiple units, designed for high-density commuter services on the UK rail network.
-
B.
Class 387/2
Class 387/2 is a subseries of the British Rail Class 387 electric multiple units, built for high-capacity commuter and airport services on the UK rail network.
-
C.
Class 165/1
Class 165/1 is a subseries of British diesel multiple-unit commuter trains designed for regional and suburban passenger services in the UK.
-
D.
Class 150/1
Class 150/1 is a subclass of the British Rail Class 150 diesel multiple units, distinguished by its specific interior layout and configuration for regional passenger services.
-
E.
Class 700/1
Class 700/1 is a subseries of the British Rail Class 700 electric multiple units, built for high-capacity commuter services on the Thameslink 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: Class 387/3 Triple: [British Rail Class 387, subclass, Class 387/3]
Generated description
Class 387/3 is a subseries of the British Rail Class 387 electric multiple units, built for high-capacity commuter services with modern onboard amenities and performance.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Class 387/3 Target entity description: Class 387/3 is a subseries of the British Rail Class 387 electric multiple units, built for high-capacity commuter services with modern onboard amenities and performance.
-
A.
Class 387/1
Class 387/1 is a subseries of the British Rail Class 387 electric multiple units, designed for high-density commuter services on the UK rail network.
-
B.
Class 387/2
Class 387/2 is a subseries of the British Rail Class 387 electric multiple units, built for high-capacity commuter and airport services on the UK rail network.
-
C.
Class 165/1
Class 165/1 is a subseries of British diesel multiple-unit commuter trains designed for regional and suburban passenger services in the UK.
-
D.
Class 150/1
Class 150/1 is a subclass of the British Rail Class 150 diesel multiple units, distinguished by its specific interior layout and configuration for regional passenger services.
-
E.
Class 700/1
Class 700/1 is a subseries of the British Rail Class 700 electric multiple units, built for high-capacity commuter services on the Thameslink 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_69c68857ffc08190857dc62cd5253777 |
completed | March 27, 2026, 1:38 p.m. |
| NER | Named-entity recognition | batch_69c6dbedafa48190af0d2b47e3a1e17e |
completed | March 27, 2026, 7:35 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c7883f0d988190b170901aea57d360 |
completed | March 28, 2026, 7:50 a.m. |
| NEDg | Description generation | batch_69c78a822ab0819097e2b40d4b9e044f |
completed | March 28, 2026, 8 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c78b33f5308190a3f234a2c0bd8b9c |
completed | March 28, 2026, 8:03 a.m. |
Created at: March 27, 2026, 2:32 p.m.