Triple
T18536863
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Gotthard Base Tunnel |
E452986
|
entity |
| Predicate | builder |
P3143
|
FINISHED |
| Object | AlpTransit Gotthard AG |
—
|
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: AlpTransit Gotthard AG | Statement: [Gotthard Base Tunnel, builder, AlpTransit Gotthard AG]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: AlpTransit Gotthard AG Context triple: [Gotthard Base Tunnel, builder, AlpTransit Gotthard AG]
-
A.
Wengernalpbahn AG
Wengernalpbahn AG is the Swiss railway company that operates the historic Wengernalp Railway in the Bernese Oberland region.
-
B.
Berner Oberland-Bahnen AG
Berner Oberland-Bahnen AG is a Swiss railway company that operates regional and tourist rail services in the Bernese Oberland region, including routes to popular alpine destinations.
-
C.
Matterhorn Gotthard Verkehrsverbund
Matterhorn Gotthard Verkehrsverbund is a regional public transport association in the Swiss Alps that coordinates and integrates services such as the Matterhorn Gotthard Bahn within a unified fare and timetable system.
-
D.
Rhätische Bahn railway
The Rhätische Bahn railway is a Swiss narrow-gauge mountain railway network in the canton of Graubünden, renowned for its scenic alpine routes and UNESCO-listed lines.
-
E.
Schweizerische Nordostbahn
Schweizerische Nordostbahn was a major 19th-century Swiss private railway company that operated in northeastern Switzerland before being nationalized into the Swiss Federal Railways.
- 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: AlpTransit Gotthard AG Target entity description: AlpTransit Gotthard AG is a Swiss project company responsible for planning and constructing major transalpine railway base tunnels, including key segments of the New Railway Link through the Alps.
-
A.
Wengernalpbahn AG
Wengernalpbahn AG is the Swiss railway company that operates the historic Wengernalp Railway in the Bernese Oberland region.
-
B.
Berner Oberland-Bahnen AG
Berner Oberland-Bahnen AG is a Swiss railway company that operates regional and tourist rail services in the Bernese Oberland region, including routes to popular alpine destinations.
-
C.
Matterhorn Gotthard Verkehrsverbund
Matterhorn Gotthard Verkehrsverbund is a regional public transport association in the Swiss Alps that coordinates and integrates services such as the Matterhorn Gotthard Bahn within a unified fare and timetable system.
-
D.
Rhätische Bahn railway
The Rhätische Bahn railway is a Swiss narrow-gauge mountain railway network in the canton of Graubünden, renowned for its scenic alpine routes and UNESCO-listed lines.
-
E.
Schweizerische Nordostbahn
Schweizerische Nordostbahn was a major 19th-century Swiss private railway company that operated in northeastern Switzerland before being nationalized into the Swiss Federal Railways.
- F. None of above. chosen
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_69d8d387b5548190aa030dad2cb4947e |
completed | April 10, 2026, 10:40 a.m. |
| NER | Named-entity recognition | batch_69e5340256d08190bf22d2cb064413b2 |
completed | April 19, 2026, 7:58 p.m. |
Created at: April 10, 2026, 11:37 a.m.