Triple
T6592492
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | British Rail Class 171 |
E148394
|
entity |
| Predicate | category |
P87
|
FINISHED |
| Object |
Bombardier Turbostar multiple units
Bombardier Turbostar multiple units are a family of diesel multiple-unit passenger trains widely used on regional and commuter rail services in the United Kingdom.
|
E599690
|
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: Bombardier Turbostar multiple units | Statement: [British Rail Class 171, category, Bombardier Turbostar multiple units]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Bombardier Turbostar multiple units Context triple: [British Rail Class 171, category, Bombardier Turbostar multiple units]
-
A.
Bombardier BiLevel Coach
The Bombardier BiLevel Coach is a double-decker commuter rail car widely used across North America to increase passenger capacity on regional and suburban train services.
-
B.
Bombardier REGIO
Bombardier REGIO is a family of regional and commuter trains developed by Bombardier for short- to medium-distance passenger rail services.
-
C.
Bombardier Flexity Classic
The Bombardier Flexity Classic is a family of low-floor, multi-section trams used in various cities worldwide, designed for reliable, accessible urban light rail service.
-
D.
Bombardier Flexity Outlook
The Bombardier Flexity Outlook is a family of low-floor, modular light rail and tram vehicles widely used in urban public transport systems around the world.
-
E.
Bombardier Electrostar (electric multiple unit family)
The Bombardier Electrostar is a widely used family of British electric multiple unit trains known for their modular design and operation on suburban and commuter rail 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: Bombardier Turbostar multiple units Triple: [British Rail Class 171, category, Bombardier Turbostar multiple units]
Generated description
Bombardier Turbostar multiple units are a family of diesel multiple-unit passenger trains widely used on regional and commuter rail services in the United Kingdom.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Bombardier Turbostar multiple units Target entity description: Bombardier Turbostar multiple units are a family of diesel multiple-unit passenger trains widely used on regional and commuter rail services in the United Kingdom.
-
A.
Bombardier BiLevel Coach
The Bombardier BiLevel Coach is a double-decker commuter rail car widely used across North America to increase passenger capacity on regional and suburban train services.
-
B.
Bombardier REGIO
Bombardier REGIO is a family of regional and commuter trains developed by Bombardier for short- to medium-distance passenger rail services.
-
C.
Bombardier Flexity Classic
The Bombardier Flexity Classic is a family of low-floor, multi-section trams used in various cities worldwide, designed for reliable, accessible urban light rail service.
-
D.
Bombardier Flexity Outlook
The Bombardier Flexity Outlook is a family of low-floor, modular light rail and tram vehicles widely used in urban public transport systems around the world.
-
E.
Bombardier Electrostar (electric multiple unit family)
The Bombardier Electrostar is a widely used family of British electric multiple unit trains known for their modular design and operation on suburban and commuter rail 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_69c687e7b8688190811ffee72e096468 |
completed | March 27, 2026, 1:36 p.m. |
| NER | Named-entity recognition | batch_69c6aece1f848190a11676e072afb002 |
completed | March 27, 2026, 4:22 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c6cbba656c81909c3876a8f2f7300e |
completed | March 27, 2026, 6:26 p.m. |
| NEDg | Description generation | batch_69c6cd08a9c88190a481d4d3f8e680bf |
completed | March 27, 2026, 6:31 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69c6cdc859cc8190bbae2efc39409021 |
completed | March 27, 2026, 6:34 p.m. |
Created at: March 27, 2026, 1:55 p.m.