Triple
T23390512
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Gletsch railway station |
E594002
|
entity |
| Predicate | servedBy |
P82
|
FINISHED |
| Object | Furka Cogwheel Steam Railway |
—
|
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: Furka Cogwheel Steam Railway | Statement: [Gletsch railway station, servedBy, Furka Cogwheel Steam Railway]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Furka Cogwheel Steam Railway Context triple: [Gletsch railway station, servedBy, Furka Cogwheel Steam Railway]
-
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.
Mangfall Valley Railway
The Mangfall Valley Railway is a regional rail line in Bavaria, Germany, running through the Mangfall Valley and connecting several towns between Holzkirchen and Rosenheim.
-
C.
Furka railway line
The Furka railway line is a historic Swiss mountain railway route renowned for its dramatic alpine scenery, steep gradients, and use of cogwheel technology to traverse the Furka Pass.
-
D.
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.
-
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.
- 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_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.