Triple

T16783550

Position	Surface form	Disambiguated ID	Type / Status
Subject	La Chaux-de-Fonds railway station	`E407912`	entity
Predicate	railwayLine	`P848`	FINISHED
Object	La Chaux-de-Fonds–Les Ponts-de-Martel line The La Chaux-de-Fonds–Les Ponts-de-Martel line is a regional railway in the Swiss canton of Neuchâtel that connects the watchmaking city of La Chaux-de-Fonds with the village of Les Ponts-de-Martel through the Jura mountains.	`E1237771`	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: La Chaux-de-Fonds–Les Ponts-de-Martel line | Statement: [La Chaux-de-Fonds railway station, railwayLine, La Chaux-de-Fonds–Les Ponts-de-Martel line]

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: La Chaux-de-Fonds–Les Ponts-de-Martel line
Context triple: [La Chaux-de-Fonds railway station, railwayLine, La Chaux-de-Fonds–Les Ponts-de-Martel line]

A. Lausanne–Villeneuve railway line
The Lausanne–Villeneuve railway line is a Swiss standard-gauge rail route along the north shore of Lake Geneva that connects Lausanne with the town of Villeneuve, serving numerous intermediate communities.
B. La Chaux-de-Fonds–Le Locle-Col-des-Roches line
The La Chaux-de-Fonds–Le Locle-Col-des-Roches line is a Swiss standard-gauge railway in the canton of Neuchâtel that connects the watchmaking centers of La Chaux-de-Fonds and Le Locle to the French border at Col-des-Roches.
C. Neuchâtel–La Chaux-de-Fonds line
The Neuchâtel–La Chaux-de-Fonds line is a Swiss standard-gauge railway route connecting the city of Neuchâtel with the watchmaking center of La Chaux-de-Fonds in the Jura region.
D. Geneva–La Plaine railway line
The Geneva–La Plaine railway line is a regional rail route in the canton of Geneva, Switzerland, connecting central Geneva with its western suburbs and the French border.
E. Vevey–Chexbres railway line
The Vevey–Chexbres railway line is a short Swiss branch line in the canton of Vaud that climbs from the lakeside town of Vevey into the Lavaux vineyards, offering scenic connections to the main Lausanne–Bern route.
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: La Chaux-de-Fonds–Les Ponts-de-Martel line
Triple: [La Chaux-de-Fonds railway station, railwayLine, La Chaux-de-Fonds–Les Ponts-de-Martel line]

Generated description

The La Chaux-de-Fonds–Les Ponts-de-Martel line is a regional railway in the Swiss canton of Neuchâtel that connects the watchmaking city of La Chaux-de-Fonds with the village of Les Ponts-de-Martel through the Jura mountains.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: La Chaux-de-Fonds–Les Ponts-de-Martel line
Target entity description: The La Chaux-de-Fonds–Les Ponts-de-Martel line is a regional railway in the Swiss canton of Neuchâtel that connects the watchmaking city of La Chaux-de-Fonds with the village of Les Ponts-de-Martel through the Jura mountains.

A. Lausanne–Villeneuve railway line
The Lausanne–Villeneuve railway line is a Swiss standard-gauge rail route along the north shore of Lake Geneva that connects Lausanne with the town of Villeneuve, serving numerous intermediate communities.
B. La Chaux-de-Fonds–Le Locle-Col-des-Roches line
The La Chaux-de-Fonds–Le Locle-Col-des-Roches line is a Swiss standard-gauge railway in the canton of Neuchâtel that connects the watchmaking centers of La Chaux-de-Fonds and Le Locle to the French border at Col-des-Roches.
C. Neuchâtel–La Chaux-de-Fonds line
The Neuchâtel–La Chaux-de-Fonds line is a Swiss standard-gauge railway route connecting the city of Neuchâtel with the watchmaking center of La Chaux-de-Fonds in the Jura region.
D. Geneva–La Plaine railway line
The Geneva–La Plaine railway line is a regional rail route in the canton of Geneva, Switzerland, connecting central Geneva with its western suburbs and the French border.
E. Vevey–Chexbres railway line
The Vevey–Chexbres railway line is a short Swiss branch line in the canton of Vaud that climbs from the lakeside town of Vevey into the Lavaux vineyards, offering scenic connections to the main Lausanne–Bern route.
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_69d8839270588190886720d9519bbf8f`	completed	April 10, 2026, 4:58 a.m.
NER	Named-entity recognition	`batch_69e3b218d31881908d896e688ebd171c`	completed	April 18, 2026, 4:32 p.m.
NED1	Entity disambiguation (via context triple)	`batch_6a00c29bcfe08190a281446f174a94f6`	completed	May 10, 2026, 5:38 p.m.
NEDg	Description generation	`batch_6a00c355f4108190a4209599bf5f50da`	completed	May 10, 2026, 5:41 p.m.
NED2	Entity disambiguation (via description)	`batch_6a00c413314881909e308588af09ce2a`	completed	May 10, 2026, 5:44 p.m.

Created at: April 10, 2026, 5:22 a.m.