Triple
T12845596
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Arakawa |
E307166
|
entity |
| Predicate | hasRailTransport |
P19495
|
FINISHED |
| Object | Keisei Electric Railway lines |
E684093
|
NE FINISHED |
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 Electric Railway lines | Statement: [Arakawa, hasRailTransport, Keisei Electric Railway lines]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Keisei Electric Railway lines Context triple: [Arakawa, hasRailTransport, Keisei Electric Railway lines]
-
A.
Keisei Electric Railway lines
chosen
Keisei Electric Railway lines are a group of private railway routes in the Greater Tokyo area best known for linking central Tokyo with Narita International Airport and serving commuter and interurban travel in Chiba Prefecture.
-
B.
Kintetsu Railway lines
Kintetsu Railway lines are a network of private railway routes in Japan operated by Kintetsu Corporation, connecting major cities and regional areas across the Kansai, Tōkai, and Shikoku regions.
-
C.
Keihan Electric Railway network
The Keihan Electric Railway network is a private railway system in Japan that primarily connects the Osaka and Kyoto metropolitan areas, serving as a major commuter and intercity transport corridor in the Kansai region.
-
D.
Keisei Electric Railway
Keisei Electric Railway is a major private railway operator in the Greater Tokyo area, best known for linking central Tokyo with Chiba Prefecture and Narita International Airport.
-
E.
Keio Line
The Keio Line is a major private railway line in Tokyo, Japan, operated by Keio Corporation, connecting central Tokyo with its western suburbs.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69d7bdf5e7cc8190be357278bc5ba3bb |
completed | April 9, 2026, 2:55 p.m. |
| NER | Named-entity recognition | batch_69d96ff49efc8190bd6bbac510cc4705 |
completed | April 10, 2026, 9:47 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f69b9fa40c8190bbc2c6ad22795de4 |
completed | May 3, 2026, 12:49 a.m. |
Created at: April 9, 2026, 5:36 p.m.