Triple
T16470902
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | British Rail steam locomotives |
E400055
|
entity |
| Predicate | includes |
P1393
|
FINISHED |
| Object | BR Standard Class 5MT |
E404433
|
NE FINISHED |
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: BR Standard Class 5MT | Statement: [British Rail steam locomotives, includes, BR Standard Class 5MT]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: BR Standard Class 5MT Context triple: [British Rail steam locomotives, includes, BR Standard Class 5MT]
-
A.
BR Standard Class 5
chosen
The BR Standard Class 5 was a versatile British steam locomotive class introduced in the 1950s for mixed-traffic duties across the nationalised railway network.
-
B.
BR Standard Class 7 (Britannia)
The BR Standard Class 7 "Britannia" is a class of British 4-6-2 steam locomotives introduced in the early 1950s for express passenger services across the nationalised railway network.
-
C.
BR Standard Class 9F
The BR Standard Class 9F was a powerful British 2-10-0 steam freight locomotive class introduced in the 1950s, renowned as one of the most capable heavy freight engines built for British Railways.
-
D.
British Rail Mark 1 coaching stock
British Rail Mark 1 coaching stock was a standardised generation of passenger railway carriages introduced in the 1950s that formed the backbone of British Rail’s post-war fleet.
-
E.
British Rail Class 56
The British Rail Class 56 is a heavy freight diesel-electric locomotive introduced in the 1970s for high-power haulage duties on the UK rail network.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69d87f2dac988190b74d6e185fa88ba4 |
completed | April 10, 2026, 4:40 a.m. |
| NER | Named-entity recognition | batch_69e32dd0d2fc81909b68b5afb00f192f |
completed | April 18, 2026, 7:08 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a007d9e91f48190b83cefdd2b518082 |
completed | May 10, 2026, 12:44 p.m. |
Created at: April 10, 2026, 5:11 a.m.