Triple
T22387772
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | British Rail Class 153 |
E553437
|
entity |
| Predicate | category |
P87
|
FINISHED |
| Object | British Rail diesel multiple units |
—
|
NE NERFINISHED |
How this triple was built (2 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 diesel multiple units | Statement: [British Rail Class 153, category, British Rail diesel multiple units]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: British Rail diesel multiple units Context triple: [British Rail Class 153, category, British Rail diesel multiple units]
-
A.
British Rail electric multiple units
British Rail electric multiple units are self-propelled electric passenger train sets used across the British railway network, typically formed of multiple carriages that can be coupled and operated together.
-
B.
British Rail second-generation DMUs
chosen
British Rail second-generation DMUs are more modern diesel multiple-unit trains introduced from the 1980s onward to replace earlier designs, featuring improved performance, comfort, and reliability across the UK rail network.
-
C.
British Rail rolling stock
British Rail rolling stock comprises the various locomotives, carriages, multiple units, and wagons operated by the former British Rail on the UK railway network.
-
D.
British Rail electric locomotives
British Rail electric locomotives were a fleet of electrically powered engines introduced to modernize and improve the efficiency of rail services across the British railway network.
-
E.
British Rail coaching stock
British Rail coaching stock refers to the various types of passenger carriages and related vehicles used by British Rail, encompassing multiple designs and eras of rolling stock employed across the UK rail network.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69e11e4cf87c8190a1ff474daec326b7 |
completed | April 16, 2026, 5:37 p.m. |
| NER | Named-entity recognition | batch_69f15857fb588190b8180963aedd69c0 |
completed | April 29, 2026, 1:01 a.m. |
Created at: April 16, 2026, 8:45 p.m.