Triple
T4062044
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Matterhorn Gotthard Bahn |
E86234
|
entity |
| Predicate | formedByMergerOf |
P77
|
FINISHED |
| Object |
Furka Oberalp Bahn
Furka Oberalp Bahn was a Swiss narrow-gauge railway company operating scenic alpine routes, later incorporated into the Matterhorn Gotthard Bahn network.
|
E86234
|
NE FINISHED |
How this triple was built (4 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 Oberalp Bahn | Statement: [Matterhorn Gotthard Bahn, formedByMergerOf, Furka Oberalp Bahn]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Furka Oberalp Bahn Context triple: [Matterhorn Gotthard Bahn, formedByMergerOf, Furka Oberalp Bahn]
-
A.
Gornergrat Railway
The Gornergrat Railway is a historic cogwheel mountain railway in Switzerland that carries passengers from Zermatt up to the Gornergrat ridge, offering panoramic views of the Matterhorn and surrounding Alpine glaciers.
-
B.
Matterhorn Gotthard Bahn
Matterhorn Gotthard Bahn is a Swiss narrow-gauge railway company operating scenic mountain routes through the Alps, including connections to popular destinations like Zermatt and Andermatt.
-
C.
Jura-Simplon-Bahn
The Jura-Simplon-Bahn was a major 19th-century Swiss railway company that operated key routes in western Switzerland and through the Alps before being absorbed into the national rail system.
-
D.
Bayerische Zugspitzbahn
Bayerische Zugspitzbahn is a Bavarian cogwheel railway that transports passengers from Garmisch-Partenkirchen up toward Germany’s highest peak, the Zugspitze.
-
E.
Montenvers Railway
Montenvers Railway is a historic mountain rack railway in the French Alps that carries passengers from Chamonix up to the Mer de Glace glacier.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Furka Oberalp Bahn Triple: [Matterhorn Gotthard Bahn, formedByMergerOf, Furka Oberalp Bahn]
Generated description
Furka Oberalp Bahn was a Swiss narrow-gauge railway company operating scenic alpine routes, later incorporated into the Matterhorn Gotthard Bahn network.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Furka Oberalp Bahn Target entity description: Furka Oberalp Bahn was a Swiss narrow-gauge railway company operating scenic alpine routes, later incorporated into the Matterhorn Gotthard Bahn network.
-
A.
Gornergrat Railway
The Gornergrat Railway is a historic cogwheel mountain railway in Switzerland that carries passengers from Zermatt up to the Gornergrat ridge, offering panoramic views of the Matterhorn and surrounding Alpine glaciers.
-
B.
Matterhorn Gotthard Bahn
chosen
Matterhorn Gotthard Bahn is a Swiss narrow-gauge railway company operating scenic mountain routes through the Alps, including connections to popular destinations like Zermatt and Andermatt.
-
C.
Jura-Simplon-Bahn
The Jura-Simplon-Bahn was a major 19th-century Swiss railway company that operated key routes in western Switzerland and through the Alps before being absorbed into the national rail system.
-
D.
Bayerische Zugspitzbahn
Bayerische Zugspitzbahn is a Bavarian cogwheel railway that transports passengers from Garmisch-Partenkirchen up toward Germany’s highest peak, the Zugspitze.
-
E.
Montenvers Railway
Montenvers Railway is a historic mountain rack railway in the French Alps that carries passengers from Chamonix up to the Mer de Glace glacier.
- F. None of above.
Provenance (5 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_69aed93c69208190a4efac0efe3cd69b |
completed | March 9, 2026, 2:29 p.m. |
| NER | Named-entity recognition | batch_69aefbd60cc081908764fcc8206bc1ef |
completed | March 9, 2026, 4:56 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b576966bd081909b804a3ccc18c1ee |
completed | March 14, 2026, 2:54 p.m. |
| NEDg | Description generation | batch_69b577d391ac8190b6062b1f64e2e7e8 |
completed | March 14, 2026, 2:59 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69b5787ed214819092fc425152069df9 |
completed | March 14, 2026, 3:02 p.m. |
Created at: March 9, 2026, 3:38 p.m.