Triple
T1860614
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Taitō |
E34802
|
entity |
| Predicate | hasRailwayStation |
P918
|
FINISHED |
| Object |
Keisei Ueno Station
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.
|
E524591
|
NE FINISHED |
How this triple was built (4 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, hasRailwayStation, Keisei Ueno Station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Keisei Ueno Station Context triple: [Taitō, hasRailwayStation, Keisei Ueno Station]
-
A.
Eifukuchō Station
Eifukuchō Station is a railway station in Suginami, Tokyo, Japan, served by the Keio Inokashira Line.
-
B.
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.
-
C.
Otsuka Station
Otsuka Station is a railway station in Tokyo, Japan, served by JR East and known for its location on the busy Yamanote Line loop.
-
D.
Kawaguchi Station
Kawaguchi Station is a railway station in Kawaguchi, Saitama Prefecture, Japan, operated by East Japan Railway Company (JR East).
-
E.
Naka-Urawa Station
Naka-Urawa Station is a railway station in Saitama, Japan, operated by JR East on a major commuter route connecting central Tokyo with the surrounding suburbs.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Keisei Ueno Station Triple: [Taitō, hasRailwayStation, Keisei Ueno Station]
Generated description
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.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Keisei Ueno Station Target entity description: 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.
-
A.
Eifukuchō Station
Eifukuchō Station is a railway station in Suginami, Tokyo, Japan, served by the Keio Inokashira Line.
-
B.
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.
-
C.
Otsuka Station
Otsuka Station is a railway station in Tokyo, Japan, served by JR East and known for its location on the busy Yamanote Line loop.
-
D.
Kawaguchi Station
Kawaguchi Station is a railway station in Kawaguchi, Saitama Prefecture, Japan, operated by East Japan Railway Company (JR East).
-
E.
Naka-Urawa Station
Naka-Urawa Station is a railway station in Saitama, Japan, operated by JR East on a major commuter route connecting central Tokyo with the surrounding suburbs.
- F. None of above. chosen
Provenance (5 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_69a88600b2f88190bc09303e68ab517e |
completed | March 4, 2026, 7:20 p.m. |
| NER | Named-entity recognition | batch_69abb09caee881908efe8aa38471298c |
completed | March 7, 2026, 4:59 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69bf779f7d54819083e1cb88e34c6d34 |
completed | March 22, 2026, 5:01 a.m. |
| NEDg | Description generation | batch_69bf79547f94819083d399ecc71517bf |
completed | March 22, 2026, 5:08 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69bf79e448f081908fdc205125e13bb4 |
completed | March 22, 2026, 5:11 a.m. |
Created at: March 4, 2026, 7:34 p.m.