Triple
T12592630
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Ōta |
E300642
|
entity |
| Predicate | hasAirportRailLink |
P726
|
FINISHED |
| Object | Keikyu Airport Line |
E361280
|
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: Keikyu Airport Line | Statement: [Ōta, hasAirportRailLink, Keikyu Airport Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Keikyu Airport Line Context triple: [Ōta, hasAirportRailLink, Keikyu Airport Line]
-
A.
Keikyū Airport Line
chosen
The Keikyū Airport Line is a railway line in the Tokyo area that provides direct train access between central Tokyo and Haneda Airport.
-
B.
Narita Line
The Narita Line is a railway line in Japan operated by JR East that connects Chiba Prefecture with Narita and its surrounding areas, serving both local commuters and access to Narita International Airport via connecting services.
-
C.
Kansai Airport Line
The Kansai Airport Line is a railway route in Japan that connects Kansai International Airport with the mainland rail network, providing access to major cities in the Kansai region.
-
D.
Toden Arakawa Line
The Toden Arakawa Line is one of Tokyo’s last remaining streetcar lines, running through northern and eastern parts of the city and serving as a nostalgic, tram-style alternative to subways and buses.
-
E.
Yurikamome Line
The Yurikamome Line is an automated, elevated transit line in Tokyo that connects central Tokyo with the Odaiba waterfront area, offering scenic views including a crossing of the Rainbow Bridge.
- 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_69d7bde87b648190bcd0266e9efde098 |
completed | April 9, 2026, 2:55 p.m. |
| NER | Named-entity recognition | batch_69d954cc6d3c81908fbb22601c46f3f7 |
completed | April 10, 2026, 7:51 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fed314bb9481908144c5399aa62ffa |
completed | May 9, 2026, 6:24 a.m. |
Created at: April 9, 2026, 5:07 p.m.