Triple
T19624801
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | LMS 8F Class |
E471106
|
entity |
| Predicate | valveGear |
P49897
|
FINISHED |
| Object | Walschaerts |
—
|
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: Walschaerts | Statement: [LMS 8F Class, valveGear, Walschaerts]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Walschaerts Context triple: [LMS 8F Class, valveGear, Walschaerts]
-
A.
Walschaerts
chosen
Walschaerts valve gear is a widely used steam locomotive valve gear mechanism, developed in the 19th century, that precisely controls steam admission and exhaust to the cylinders.
-
B.
Egide Walschaerts
Egide Walschaerts was a 19th-century Belgian mechanical engineer best known for inventing the widely used Walschaerts valve gear for steam locomotives.
-
C.
Stephenson valve gear
Stephenson valve gear is an early and widely used type of steam locomotive valve gear that uses eccentrics mounted on the driving axle to control steam admission and exhaust to the cylinders.
-
D.
Borsig
Borsig is a German surname most prominently associated with August Borsig, a 19th-century industrialist and locomotive manufacturer.
-
E.
Ingersoll
Ingersoll is a small industrial town in southwestern Ontario, Canada, known for its manufacturing sector and proximity to major transportation routes.
- 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_69d8e510fa248190b7afb274a1d4cf73 |
completed | April 10, 2026, 11:54 a.m. |
| NER | Named-entity recognition | batch_69e640e92ff48190ae6e6ba2c603d5e7 |
completed | April 20, 2026, 3:06 p.m. |
Created at: April 10, 2026, 1:44 p.m.