Triple
T21283519
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Keisei Ueno Station |
E524591
|
entity |
| Predicate | formerName |
P65
|
FINISHED |
| Object | Ueno Station (Keisei) |
—
|
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: Ueno Station (Keisei) | Statement: [Keisei Ueno Station, formerName, Ueno Station (Keisei)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Ueno Station (Keisei) Context triple: [Keisei Ueno Station, formerName, Ueno Station (Keisei)]
-
A.
Keisei Ueno Station
chosen
Keisei Ueno Station is a major terminal railway station in Tokyo operated by Keisei Electric Railway, serving as a key access point between central Tokyo and Narita International Airport.
-
B.
Ueno-hirokoji Station
Ueno-hirokoji Station is an underground Tokyo Metro station on the Ginza Line serving the busy Ueno and Okachimachi commercial and cultural district in Taitō, Tokyo.
-
C.
Ueno-okachimachi Station
Ueno-okachimachi Station is a subway station in Tokyo, Japan, serving the Toei Ōedo Line and providing convenient transfers to several nearby JR and Tokyo Metro stations in the Ueno and Okachimachi area.
-
D.
Noborito Station
Noborito Station is a railway station in Kawasaki, Kanagawa Prefecture, Japan, serving as an important interchange between the Odakyu Odawara Line and JR East’s Nambu Line.
-
E.
Eifukuchō Station
Eifukuchō Station is a railway station in Suginami, Tokyo, Japan, served by the Keio Inokashira Line.
- 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_69e0b5171f6c8190a5d57201ede73811 |
completed | April 16, 2026, 10:08 a.m. |
| NER | Named-entity recognition | batch_69e736d3dfbc819081bd876d95c7c480 |
completed | April 21, 2026, 8:35 a.m. |
Created at: April 16, 2026, 4:03 p.m.