Triple
T18581201
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Grindelwald railway station |
E454117
|
entity |
| Predicate | operator |
P179
|
FINISHED |
| Object | Berner Oberland-Bahnen AG |
—
|
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: Berner Oberland-Bahnen AG | Statement: [Grindelwald railway station, operator, Berner Oberland-Bahnen AG]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Berner Oberland-Bahnen AG Context triple: [Grindelwald railway station, operator, Berner Oberland-Bahnen AG]
-
A.
Berner Oberland-Bahnen AG
chosen
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.
-
B.
Wengernalpbahn AG
Wengernalpbahn AG is the Swiss railway company that operates the historic Wengernalp Railway in the Bernese Oberland region.
-
C.
Schweizerische Centralbahn
Schweizerische Centralbahn was a 19th-century Swiss railway company that operated key lines in northern and central Switzerland before being absorbed into the national railway system.
-
D.
Schweizerische Nordwestbahn
Schweizerische Nordwestbahn was a former Swiss railway company that operated in northwestern Switzerland before being absorbed into the national rail system.
-
E.
AlpTransit Gotthard AG
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.
- 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_69d8d38974308190a9174430ef256b73 |
completed | April 10, 2026, 10:40 a.m. |
| NER | Named-entity recognition | batch_69e543cffd34819090d636fd584f51db |
completed | April 19, 2026, 9:06 p.m. |
Created at: April 10, 2026, 11:43 a.m.