Triple
T21949091
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Nankai megathrust |
E542012
|
entity |
| Predicate | segmentName |
P21871
|
FINISHED |
| Object | Nankai segment |
—
|
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: Nankai segment | Statement: [Nankai megathrust, segmentName, Nankai segment]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Nankai segment Context triple: [Nankai megathrust, segmentName, Nankai segment]
-
A.
Nankai segment
chosen
The Nankai segment is a major portion of the Nankai subduction zone off southwestern Japan that is known for generating powerful megathrust earthquakes and associated tsunamis.
-
B.
Tokai segment
Tokai segment is a seismically active portion of the Nankai megathrust off central Japan, known for its potential to generate large, damaging earthquakes and tsunamis.
-
C.
Nankai Cable Line
The Nankai Cable Line is a short funicular railway in Osaka Prefecture, Japan, operated by Nankai Electric Railway to connect passengers to the Mount Kōya area.
-
D.
Nagoya–Osaka section
The Nagoya–Osaka section is the planned western extension of Japan’s Chuo Shinkansen maglev line, intended to connect Nagoya with Osaka as part of a high-speed intercity corridor.
-
E.
Okayama–Hakata section
The Okayama–Hakata section is the western stretch of Japan’s Sanyō Shinkansen high-speed rail line, linking Okayama with Hakata (Fukuoka) across the Chūgoku region.
- 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_69e0c47ef0e48190a50e1bcc43f4b3fd |
completed | April 16, 2026, 11:14 a.m. |
| NER | Named-entity recognition | batch_69f1243aed048190b4342899c83b38ec |
completed | April 28, 2026, 9:18 p.m. |
Created at: April 16, 2026, 7:58 p.m.