Triple
T21347168
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Izhevsk |
E526368
|
entity |
| Predicate | railwayServedBy |
P782
|
FINISHED |
| Object | Izhevsk railway station |
—
|
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: Izhevsk railway station | Statement: [Izhevsk, railwayServedBy, Izhevsk railway station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Izhevsk railway station Context triple: [Izhevsk, railwayServedBy, Izhevsk railway station]
-
A.
Oryol railway station
Oryol railway station is a major rail hub in the city of Oryol, Russia, serving long-distance and regional passenger traffic on key routes in western Russia.
-
B.
Nizhnekamsk railway station
Nizhnekamsk railway station is the main train station serving the city of Nizhnekamsk in Tatarstan, Russia, providing regional and intercity rail connections.
-
C.
Ladozhsky railway station
Ladozhsky railway station is a major modern passenger terminal in Saint Petersburg, Russia, serving as a key hub for both suburban and long-distance rail services.
-
D.
Yaroslavl-Glavny railway station
Yaroslavl-Glavny railway station is the main rail terminal in Yaroslavl, Russia, serving as a key hub for regional and long-distance passenger trains.
-
E.
Tikhvin railway station
Tikhvin railway station is a regional rail transport hub serving the town of Tikhvin in Leningrad Oblast, Russia, on key routes connecting it with major cities.
- 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: Izhevsk railway station Target entity description: Izhevsk railway station is the main passenger and transport hub of Izhevsk, Russia, connecting the city to regional and national rail networks.
-
A.
Oryol railway station
Oryol railway station is a major rail hub in the city of Oryol, Russia, serving long-distance and regional passenger traffic on key routes in western Russia.
-
B.
Nizhnekamsk railway station
Nizhnekamsk railway station is the main train station serving the city of Nizhnekamsk in Tatarstan, Russia, providing regional and intercity rail connections.
-
C.
Ladozhsky railway station
Ladozhsky railway station is a major modern passenger terminal in Saint Petersburg, Russia, serving as a key hub for both suburban and long-distance rail services.
-
D.
Yaroslavl-Glavny railway station
Yaroslavl-Glavny railway station is the main rail terminal in Yaroslavl, Russia, serving as a key hub for regional and long-distance passenger trains.
-
E.
Tikhvin railway station
Tikhvin railway station is a regional rail transport hub serving the town of Tikhvin in Leningrad Oblast, Russia, on key routes connecting it with major cities.
- 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_69e0b51cd5cc81909ac1187971e8a8ad |
completed | April 16, 2026, 10:08 a.m. |
| NER | Named-entity recognition | batch_69ee5ba8f1c8819089c5d753876b44d5 |
completed | April 26, 2026, 6:38 p.m. |
Created at: April 16, 2026, 4:56 p.m.