Triple
T18579534
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Piacenza railway station |
E454072
|
entity |
| Predicate | isOnCorridor |
P1018
|
FINISHED |
| Object | Po Valley rail corridor |
—
|
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: Po Valley rail corridor | Statement: [Piacenza railway station, isOnCorridor, Po Valley rail corridor]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Po Valley rail corridor Context triple: [Piacenza railway station, isOnCorridor, Po Valley rail corridor]
-
A.
Trans-Pennine freight corridor
The Trans-Pennine freight corridor is a major east–west transport route across northern England used to move goods efficiently between key industrial and port regions.
-
B.
Main Railway
The Main Railway is a major German rail line that connects key cities along the River Main, serving as an important corridor in the national railway network.
-
C.
Peninsula rail corridor
The Peninsula rail corridor is the major rail line running through California’s San Francisco Peninsula, carrying both commuter and intercity trains between San Francisco and the South Bay.
-
D.
Barrie rail corridor
The Barrie rail corridor is a major commuter rail line in the Greater Toronto Area that runs between Toronto and Barrie, serving numerous communities along its route.
-
E.
Valley Lines railway
The Valley Lines railway is a commuter rail network in South Wales that links Cardiff with the surrounding South Wales Valleys, providing key regional passenger transport services.
- 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: Po Valley rail corridor Target entity description: The Po Valley rail corridor is a major railway axis running through northern Italy’s Po Valley, linking key cities and serving as an important route for both passenger and freight traffic.
-
A.
Trans-Pennine freight corridor
The Trans-Pennine freight corridor is a major east–west transport route across northern England used to move goods efficiently between key industrial and port regions.
-
B.
Main Railway
The Main Railway is a major German rail line that connects key cities along the River Main, serving as an important corridor in the national railway network.
-
C.
Peninsula rail corridor
The Peninsula rail corridor is the major rail line running through California’s San Francisco Peninsula, carrying both commuter and intercity trains between San Francisco and the South Bay.
-
D.
Barrie rail corridor
The Barrie rail corridor is a major commuter rail line in the Greater Toronto Area that runs between Toronto and Barrie, serving numerous communities along its route.
-
E.
Valley Lines railway
The Valley Lines railway is a commuter rail network in South Wales that links Cardiff with the surrounding South Wales Valleys, providing key regional passenger transport services.
- 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_69d8d38974308190a9174430ef256b73 |
completed | April 10, 2026, 10:40 a.m. |
| NER | Named-entity recognition | batch_69e543ce63188190b14a37c5ca9c2726 |
completed | April 19, 2026, 9:06 p.m. |
Created at: April 10, 2026, 11:43 a.m.