Triple
T21284479
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Hibiya district |
E524616
|
entity |
| Predicate | hasRailConnection |
P848
|
FINISHED |
| Object | JR Keihin-Tohoku Line (via nearby Yurakucho 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: JR Keihin-Tohoku Line (via nearby Yurakucho Station) | Statement: [Hibiya district, hasRailConnection, JR Keihin-Tohoku Line (via nearby Yurakucho Station)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: JR Keihin-Tohoku Line (via nearby Yurakucho Station) Context triple: [Hibiya district, hasRailConnection, JR Keihin-Tohoku Line (via nearby Yurakucho Station)]
-
A.
JR Keihin-Tōhoku Line (nearby via Shinagawa Station)
chosen
The JR Keihin-Tōhoku Line is a major commuter rail line in the Greater Tokyo area that runs north–south through key hubs including Shinagawa Station, providing frequent local and rapid services.
-
B.
JR Gotemba Line (via nearby stations)
The JR Gotemba Line is a regional railway line in Japan operated by JR Central that connects Kōzu in Kanagawa Prefecture with Numazu in Shizuoka Prefecture, serving communities around the eastern foothills of Mount Fuji.
-
C.
Keikyū Main Line (nearby via Shinagawa Station)
The Keikyū Main Line is a major private railway line in the Tokyo–Yokohama area that connects central Tokyo with Haneda Airport and the Miura Peninsula.
-
D.
Tokyo Metro Chiyoda Line (nearby via Kasumigaseki)
Tokyo Metro Chiyoda Line is a major Tokyo subway line running through central districts and key hubs such as Kasumigaseki, connecting residential areas with important business and government centers.
-
E.
Keihan Main Line (nearby stations)
The Keihan Main Line (nearby stations) refers to the group of Keihan Electric Railway stations that provide convenient rail access to Kyoto’s Yoshida area, connecting it with central Kyoto and Osaka.
- 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_69e736d4e7f881909c2cc7936a66b79d |
completed | April 21, 2026, 8:35 a.m. |
Created at: April 16, 2026, 4:03 p.m.