Triple

T23390477
Position Surface form Disambiguated ID Type / Status
Subject Furka Cogwheel Steam Railway E594001 entity
Predicate nativeName P15 FINISHED
Object Dampfbahn Furka-Bergstrecke
Dampfbahn Furka-Bergstrecke is a historic Swiss heritage railway that operates restored steam-powered cogwheel trains over the scenic high-altitude Furka Pass route in the Alps.
E1587945 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: Dampfbahn Furka-Bergstrecke | Statement: [Furka Cogwheel Steam Railway, nativeName, Dampfbahn Furka-Bergstrecke]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Dampfbahn Furka-Bergstrecke
Context triple: [Furka Cogwheel Steam Railway, nativeName, Dampfbahn Furka-Bergstrecke]
  • A. Furka–Oberalp line
    The Furka–Oberalp line is a historic Swiss metre-gauge mountain railway crossing the Alps between the cantons of Valais, Uri, and Graubünden, renowned for its steep gradients, scenic vistas, and partial operation as a heritage steam railway.
  • B. Furka Oberalp railway
    The Furka Oberalp railway is a historic Swiss narrow-gauge mountain railway renowned for its spectacular alpine scenery and steep, winding route through the central Swiss Alps.
  • C. Brünig railway line
    The Brünig railway line is a scenic Swiss metre-gauge rail route operated by Zentralbahn that connects Lucerne and Interlaken across the Alps.
  • D. Allgäu Railway
    The Allgäu Railway is a major railway line in southern Germany that connects Bavarian towns and cities through the scenic Allgäu region near the Alps.
  • E. Vitznau–Rigi railway
    The Vitznau–Rigi railway is a historic Swiss mountain rack railway that climbs from the shores of Lake Lucerne up Mount Rigi, renowned as one of the world’s earliest cogwheel railways and a popular tourist attraction.
  • 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: Dampfbahn Furka-Bergstrecke
Triple: [Furka Cogwheel Steam Railway, nativeName, Dampfbahn Furka-Bergstrecke]
Generated description
Dampfbahn Furka-Bergstrecke is a historic Swiss heritage railway that operates restored steam-powered cogwheel trains over the scenic high-altitude Furka Pass route in the Alps.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Dampfbahn Furka-Bergstrecke
Target entity description: Dampfbahn Furka-Bergstrecke is a historic Swiss heritage railway that operates restored steam-powered cogwheel trains over the scenic high-altitude Furka Pass route in the Alps.
  • A. Furka–Oberalp line
    The Furka–Oberalp line is a historic Swiss metre-gauge mountain railway crossing the Alps between the cantons of Valais, Uri, and Graubünden, renowned for its steep gradients, scenic vistas, and partial operation as a heritage steam railway.
  • B. Furka Oberalp railway
    The Furka Oberalp railway is a historic Swiss narrow-gauge mountain railway renowned for its spectacular alpine scenery and steep, winding route through the central Swiss Alps.
  • C. Brünig railway line
    The Brünig railway line is a scenic Swiss metre-gauge rail route operated by Zentralbahn that connects Lucerne and Interlaken across the Alps.
  • D. Allgäu Railway
    The Allgäu Railway is a major railway line in southern Germany that connects Bavarian towns and cities through the scenic Allgäu region near the Alps.
  • E. Vitznau–Rigi railway
    The Vitznau–Rigi railway is a historic Swiss mountain rack railway that climbs from the shores of Lake Lucerne up Mount Rigi, renowned as one of the world’s earliest cogwheel railways and a popular tourist attraction.
  • F. None of above. chosen

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_69e25d2754fc819085deea939bde60ab completed April 17, 2026, 4:17 p.m.
NER Named-entity recognition batch_69f1a49bdfec8190afa592c66660c279 completed April 29, 2026, 6:26 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0c82403e108190abd79eecc949a1d7 completed May 19, 2026, 3:31 p.m.
NEDg Description generation batch_6a0ca6eda1f481908482f3a66d576c3c completed May 19, 2026, 6:07 p.m.
NED2 Entity disambiguation (via description) batch_6a0ca7bdf7f08190b50191b029480fc5 completed May 19, 2026, 6:11 p.m.
Created at: April 17, 2026, 5:35 p.m.