Triple
T23196025
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | British Rail second-generation DMUs |
E579870
|
entity |
| Predicate | replaces |
P101
|
FINISHED |
| Object | British Rail first-generation DMUs |
—
|
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 first-generation DMUs | Statement: [British Rail second-generation DMUs, replaces, British Rail first-generation DMUs]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: British Rail first-generation DMUs Context triple: [British Rail second-generation DMUs, replaces, British Rail first-generation DMUs]
-
A.
British Rail first-generation DMUs
chosen
British Rail first-generation DMUs were early diesel multiple-unit passenger trains introduced in the mid-20th century to modernize and replace steam-hauled services on Britain’s rail network.
-
B.
British Rail second-generation DMUs
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 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.
-
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 Class 116 DMU
The British Rail Class 116 DMU is a type of first-generation diesel multiple unit built for suburban and commuter services on the British railway network in the late 1950s and 1960s.
- 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_69e24600eed08190bd7e5295653a1503 |
completed | April 17, 2026, 2:38 p.m. |
| NER | Named-entity recognition | batch_69f18fdb279c81908dcc46f2786a86cd |
completed | April 29, 2026, 4:58 a.m. |
Created at: April 17, 2026, 4:06 p.m.