Triple
T4062056
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Matterhorn Gotthard Bahn |
E86234
|
entity |
| Predicate | routePassesThrough |
P34612
|
FINISHED |
| Object |
Furka Base Tunnel
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.
|
E409969
|
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 Base Tunnel | Statement: [Matterhorn Gotthard Bahn, routePassesThrough, Furka Base Tunnel]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Furka Base Tunnel Context triple: [Matterhorn Gotthard Bahn, routePassesThrough, Furka Base Tunnel]
-
A.
Kanmon Tunnel
The Kanmon Tunnel is an undersea railway and road tunnel in Japan that links the islands of Honshu and Kyushu beneath the Kanmon Straits.
-
B.
Salang Tunnel
The Salang Tunnel is a strategic highway tunnel in Afghanistan that passes through the Hindu Kush mountains, providing a vital north–south transport link between Kabul and the northern provinces.
-
C.
Simplon Tunnel
The Simplon Tunnel is a major railway tunnel beneath the Alps connecting Switzerland and Italy, historically significant as one of the longest and most important transalpine rail routes.
-
D.
Roki Tunnel
Roki Tunnel is a strategic road tunnel through the Caucasus Mountains that serves as a key transport link between Russia and the breakaway region of South Ossetia in Georgia.
-
E.
Wawona Tunnel
Wawona Tunnel is a historic highway tunnel in Yosemite National Park that serves as the dramatic western gateway to the famous Tunnel View overlook of Yosemite Valley.
- 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 Base Tunnel Triple: [Matterhorn Gotthard Bahn, routePassesThrough, Furka Base Tunnel]
Generated description
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.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Furka Base Tunnel Target entity description: 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.
-
A.
Kanmon Tunnel
The Kanmon Tunnel is an undersea railway and road tunnel in Japan that links the islands of Honshu and Kyushu beneath the Kanmon Straits.
-
B.
Salang Tunnel
The Salang Tunnel is a strategic highway tunnel in Afghanistan that passes through the Hindu Kush mountains, providing a vital north–south transport link between Kabul and the northern provinces.
-
C.
Simplon Tunnel
The Simplon Tunnel is a major railway tunnel beneath the Alps connecting Switzerland and Italy, historically significant as one of the longest and most important transalpine rail routes.
-
D.
Roki Tunnel
Roki Tunnel is a strategic road tunnel through the Caucasus Mountains that serves as a key transport link between Russia and the breakaway region of South Ossetia in Georgia.
-
E.
Wawona Tunnel
Wawona Tunnel is a historic highway tunnel in Yosemite National Park that serves as the dramatic western gateway to the famous Tunnel View overlook of Yosemite Valley.
- 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_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_69b562ac25848190951431c9c853cc59 |
completed | March 14, 2026, 1:29 p.m. |
| NEDg | Description generation | batch_69b5633103e081909dbe7a7e54877343 |
completed | March 14, 2026, 1:31 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69b563eca17c81908deff0d361a7be87 |
completed | March 14, 2026, 1:34 p.m. |
Created at: March 9, 2026, 3:38 p.m.