Triple
T22827810
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Furka Oberalp Railway |
E565707
|
entity |
| Predicate | hasTunnel |
P21069
|
FINISHED |
| Object | Furka Base Tunnel |
—
|
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 Base Tunnel | Statement: [Furka Oberalp Railway, hasTunnel, Furka Base Tunnel]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Furka Base Tunnel Context triple: [Furka Oberalp Railway, hasTunnel, Furka Base Tunnel]
-
A.
Furka Base Tunnel
chosen
The Furka Base Tunnel is a long railway tunnel in the Swiss Alps that provides an all-weather, low-level route beneath the Furka Pass, improving connectivity and reliability on the Matterhorn Gotthard Bahn line.
-
B.
Gotthard Base Tunnel
The Gotthard Base Tunnel is a 57-kilometer railway tunnel beneath the Swiss Alps, renowned as one of the world’s longest and deepest traffic tunnels, designed to improve high-speed rail connectivity across Europe.
-
C.
Brenner Base Tunnel
The Brenner Base Tunnel is a major transalpine railway tunnel under construction between Austria and Italy, designed to significantly improve freight and passenger rail transport across the Alps by providing a faster, flatter route beneath the Brenner Pass.
-
D.
Tateyama Tunnel
Tateyama Tunnel is a high-altitude mountain tunnel in Japan that forms part of the scenic Tateyama Kurobe Alpine Route through the Northern Japan Alps.
-
E.
Sitina Tunnel
Sitina Tunnel is a major road tunnel in Bratislava, Slovakia, forming part of the city’s key motorway connection and easing traffic flow in the western part of the capital.
- 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_69e24585ab1c81909b2b5065d15805d5 |
completed | April 17, 2026, 2:36 p.m. |
| NER | Named-entity recognition | batch_69f17e2914188190be6cdbd8167cd806 |
completed | April 29, 2026, 3:42 a.m. |
Created at: April 17, 2026, 3:34 p.m.