Triple
T11407515
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Taitō, Tokyo, Japan |
E270275
|
entity |
| Predicate | contains |
P35
|
FINISHED |
| Object | Keisei Ueno Station |
—
|
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: Keisei Ueno Station | Statement: [Taitō, Tokyo, Japan, contains, Keisei Ueno Station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Keisei Ueno Station Context triple: [Taitō, Tokyo, Japan, contains, Keisei Ueno Station]
-
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.
Suminoekōen Station
Suminoekōen Station is a railway station in Osaka, Japan, serving as the southern terminus of the Osaka Metro Yotsubashi Line and a key access point to the nearby Suminoe Park area.
-
C.
Ichigaya Station
Ichigaya Station is a major railway and subway hub in central Tokyo’s Chiyoda ward, serving multiple lines and providing access to nearby government offices, universities, and the Ichigaya district.
-
D.
Eifukuchō Station
Eifukuchō Station is a railway station in Suginami, Tokyo, Japan, served by the Keio Inokashira Line.
-
E.
Kichijōji Station
Kichijōji Station is a major railway hub in Tokyo’s Musashino area, serving multiple lines and providing access to the popular Kichijōji shopping and entertainment district as well as Inokashira Park.
- 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_69d6aaddeaa8819088b30ef7b50598c9 |
completed | April 8, 2026, 7:22 p.m. |
| NER | Named-entity recognition | batch_69d8014e72748190a01bde2f0105cedb |
completed | April 9, 2026, 7:43 p.m. |
Created at: April 8, 2026, 9:34 p.m.