Triple
T14917325
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Walschaerts valve gear |
E371412
|
entity |
| Predicate | hasAlternativeSpelling |
P457
|
FINISHED |
| Object | Walschaert valve gear |
E371412
|
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: Walschaert valve gear | Statement: [Walschaerts valve gear, hasAlternativeSpelling, Walschaert valve gear]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Walschaert valve gear Context triple: [Walschaerts valve gear, hasAlternativeSpelling, Walschaert valve gear]
-
A.
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.
-
B.
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.
-
C.
Watt steam engine
The Watt steam engine was a vastly improved steam engine developed in the late 18th century that greatly increased efficiency and helped power the Industrial Revolution.
-
D.
Stephenson's Rocket
Stephenson's Rocket is an early 19th-century steam locomotive famous for winning the 1829 Rainhill Trials and proving the viability of railway transport.
-
E.
James the Red Engine
James the Red Engine is a bright red mixed-traffic steam locomotive and one of the main anthropomorphic train characters in Rev. W. Awdry’s Railway Series, later popularized by the Thomas & Friends television adaptations.
- 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_69d85cc7ea3481908228b5acb7d06f12 |
completed | April 10, 2026, 2:13 a.m. |
| NER | Named-entity recognition | batch_69ded62038508190946499cd3552990e |
completed | April 15, 2026, 12:04 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fe7e86ce888190b03056db39438701 |
completed | May 9, 2026, 12:23 a.m. |
Created at: April 10, 2026, 2:32 a.m.