Triple
T23390468
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Furka Cogwheel Steam Railway |
E594001
|
entity |
| Predicate | operatedBy |
P86
|
FINISHED |
| Object | Furka Cogwheel Steam Railway preservation association |
—
|
NE NERFINISHED |
How this triple was built (3 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: Furka Cogwheel Steam Railway preservation association | Statement: [Furka Cogwheel Steam Railway, operatedBy, Furka Cogwheel Steam Railway preservation association]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Furka Cogwheel Steam Railway preservation association Context triple: [Furka Cogwheel Steam Railway, operatedBy, Furka Cogwheel Steam Railway preservation association]
-
A.
Furka Cogwheel Steam Railway
The Furka Cogwheel Steam Railway is a historic Swiss mountain railway operated with vintage steam locomotives, offering scenic journeys over the Furka Pass between Realp and Oberwald.
-
B.
Odontotos rack railway
The Odontotos rack railway is a historic narrow-gauge cog railway in Greece, renowned for its scenic route through the Vouraikos Gorge between Diakopto and Kalavryta.
-
C.
A1 Steam Locomotive Trust
The A1 Steam Locomotive Trust is a British charitable organization dedicated to designing, building, and operating new mainline steam locomotives to historic LNER designs.
-
D.
Enz Valley Railway
Enz Valley Railway is a regional railway line in Germany that runs through the Enz Valley, connecting local towns and supporting commuter and tourist travel.
-
E.
Hell Valley Railway
Hell Valley Railway is the English name for the Höllentalbahn, a scenic and steep railway line running through the Höllental (Hell Valley) in Germany’s Black Forest region.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Furka Cogwheel Steam Railway preservation association Target entity description: The Furka Cogwheel Steam Railway preservation association is a heritage organization dedicated to restoring, maintaining, and operating the historic Furka mountain railway as a living steam-powered museum line in Switzerland.
-
A.
Furka Cogwheel Steam Railway
chosen
The Furka Cogwheel Steam Railway is a historic Swiss mountain railway operated with vintage steam locomotives, offering scenic journeys over the Furka Pass between Realp and Oberwald.
-
B.
Odontotos rack railway
The Odontotos rack railway is a historic narrow-gauge cog railway in Greece, renowned for its scenic route through the Vouraikos Gorge between Diakopto and Kalavryta.
-
C.
A1 Steam Locomotive Trust
The A1 Steam Locomotive Trust is a British charitable organization dedicated to designing, building, and operating new mainline steam locomotives to historic LNER designs.
-
D.
Enz Valley Railway
Enz Valley Railway is a regional railway line in Germany that runs through the Enz Valley, connecting local towns and supporting commuter and tourist travel.
-
E.
Hell Valley Railway
Hell Valley Railway is the English name for the Höllentalbahn, a scenic and steep railway line running through the Höllental (Hell Valley) in Germany’s Black Forest region.
- F. None of above.
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_69e25d2754fc819085deea939bde60ab |
completed | April 17, 2026, 4:17 p.m. |
| NER | Named-entity recognition | batch_69f1a49bdfec8190afa592c66660c279 |
completed | April 29, 2026, 6:26 a.m. |
Created at: April 17, 2026, 5:35 p.m.